Provided by: lftp_4.8.4-1_amd64 bug

NAME

       lftp - Sophisticated file transfer program

SYNTAX

       lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
       lftp -f script_file
       lftp -c commands
       lftp --version
       lftp --help

VERSION

       This man page documents lftp version 4.8.1.

DESCRIPTION

       lftp  is a file transfer program that allows sophisticated FTP, HTTP and other connections
       to other hosts. If site is specified then lftp will  connect  to  that  site  otherwise  a
       connection has to be established with the open command.

       lftp can handle several file access methods - FTP, FTPS, HTTP, HTTPS, HFTP, FISH, SFTP and
       file (HTTPS and FTPS are only available when lftp is compiled  with  GNU  TLS  or  OpenSSL
       library).  You  can  specify  the  method  to  use  in  `open  URL'  command,  e.g.  `open
       http://www.us.kernel.org/pub/linux'. HFTP is ftp-over-http-proxy protocol. It can be  used
       automatically  instead  of  FTP  if  ftp:proxy  is set to `http://proxy[:port]'. Fish is a
       protocol working over an ssh connection to a unix account. SFtp is a protocol  implemented
       in SSH2 as SFTP subsystem.

       Besides FTP-like protocols, lftp has support for BitTorrent protocol as `torrent' command.
       Seeding is also supported.

       Every operation in lftp is reliable, that is any non-fatal error is handled  properly  and
       the  operation  is repeated. So if downloading breaks, it will be restarted from the point
       automatically. Even if FTP server does not support the REST  command,  lftp  will  try  to
       retrieve the file from the very beginning until the file is transferred completely.

       lftp  has shell-like command syntax allowing you to launch several commands in parallel in
       background (&). It is also possible to group  commands  within  ()  and  execute  them  in
       background.  All  background jobs are executed in the same single process. You can bring a
       foreground job to background with ^Z (c-z) and back with command `wait' (or `fg' which  is
       alias  to  `wait').  To  list  running  jobs,  use  command  `jobs'.  Some  commands allow
       redirecting their output (cat, ls, ...) to file or via pipe to external command.  Commands
       can be executed conditionally based on termination status of previous command (&&, ||).

       If you exit lftp before all jobs are not finished yet, lftp will move itself to nohup mode
       in background. The same thing happens with a real modem hangup or when you close an xterm.

       lftp has built-in mirror which can download or update a whole  directory  tree.  There  is
       also  reverse  mirror  (mirror  -R)  which  uploads or updates a directory tree on server.
       Mirror can  also  synchronize  directories  between  two  remote  servers,  using  FXP  if
       available.

       There  is  command  `at'  to  launch  a  job at specified time in current context, command
       `queue' to queue commands for sequential execution for current server, and much more.

       On  startup,  lftp  executes  /etc/lftp.conf  and  then  ~/.lftprc  and   ~/.lftp/rc   (or
       ~/.config/lftp/rc  if  ~/.lftp  does not exist).  You can place aliases and `set' commands
       there. Some people prefer to see full protocol debug, use `debug' to turn  the  debug  on.
       Use `debug 3' to see only greeting messages and error messages.

       lftp  has  a  number  of settable variables. You can use `set -a' to see all variables and
       their values or `set -d' to see list of defaults.  Variable names can be  abbreviated  and
       prefix can be omitted unless the rest becomes ambiguous.

       If  lftp  was  compiled  with  OpenSSL  (configure  --with-openssl)  it  includes software
       developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)

   Commands
       ! shell command

       Launch shell or shell command.

            !ls

       To do a directory listing of the local host.

       alias  [name [value]]

       Define or undefine alias name. If value is omitted, the alias is undefined, else it  takes
       the value value. If no argument is given the current aliases are listed.

            alias dir ls -lF
            alias less zmore

       at time [ -- command ]

       Wait until the given time and execute given (optional) command. See also at(1).

       attach  [PID]

       Attach the terminal to specified backgrounded lftp process.

       bookmark  [subcommand]

       The bookmark command controls bookmarks.

       Site  names  can be used in the open command directly as-is or in any command that accepts
       input URLs using the bm:site/path format.

            add <name> [<loc>]   add current place or given location to  bookmarks  and  bind  to
                                 given name
            del <name>           remove bookmark with name
            edit                 start editor on bookmarks file
            import <type>        import foreign bookmarks
            list                 list bookmarks (default)

       cache  [subcommand]

       The cache command controls local memory cache.  The following subcommands are recognized:

            stat        print cache status (default)
            on|off      turn on/off caching
            flush       flush cache
            size lim    set memory limit, -1 means unlimited
            expire Nx   set cache expiration time to N seconds (x=s) minutes (x=m) hours (x=h) or
                        days (x=d)

       cat files

       cat outputs the remote file(s) to stdout.  (See also more, zcat and zmore)

       cd rdir

       Change current remote directory.  The previous remote directory is stored as `-'. You  can
       do  `cd  -'  to  change  the directory back.  The previous directory for each site is also
       stored on disk, so you can do `open site; cd -' even after lftp restart.

       chmod [OPTS] mode files...

       Change permission mask on remote files. The mode can be an octal number or a symbolic mode
       (see chmod(1)).

            -c, --changes     like verbose but report only when a change is made
            -f, --quiet       suppress most error messages
            -v, --verbose     output a diagnostic for every file processed
            -R, --recursive   change files and directories recursively

       close [-a]

       Close idle connections.  By default only with the current server, use -a to close all idle
       connections.

       cls [OPTS] files...

       `cls' tries to retrieve information about specified files or directories and  outputs  the
       information  according  to  format  options. The difference between `ls' and `cls' is that
       `ls' requests the server to format file  listing,  and  `cls'  formats  it  itself,  after
       retrieving all the needed information.

            -1                         single-column output
            -a, --all                  show dot files
            -B, --basename             show basename of files only
                --block-size=SIZ       use SIZ-byte blocks
            -d, --directory            list directory entries instead of contents
            -F, --classify             append indicator (one of /@) to entries
            -h, --human-readable       print sizes in human readable format (e.g., 1K)
                --si                   likewise, but use powers of 1000 not 1024
            -k, --kilobytes            like --block-size=1024
            -l, --long                 use a long listing format
            -q, --quiet                don't show status
            -s, --size                 print size of each file
                --filesize             if printing size, only print size for files
            -i, --nocase               case-insensitive pattern matching
            -I, --sortnocase           sort names case-insensitively
            -D, --dirsfirst            list directories first
                --sort=OPT             "name", "size", "date"
            -S                         sort by file size
                --user, --group,
                --perms, --date,
                --linkcount, --links   show individual fields
                --time-style=STYLE     use specified time format

       command cmd args...

       execute given command ignoring aliases.

       debug [OPTS] level|off

       Switch debugging to level or turn it off. Options:

            -T        truncate output file
            -o <file> redirect debug output to the file
            -c        show message context
            -p        show PID
            -t        show timestamps

       echo [-n] string

       Prints (echos) the given string to the display.

       edit [OPTS] file

       Retrieve remote file to a temporary location, run a local editor on it and upload the file
       back if changed. Options:

            -k        keep the temporary file
            -o <temp> explicit temporary file location

       eval [-f format ] args...

       without -f it executes given arguments as a command. With -f,  arguments  are  transformed
       into  a  new  command.  The format can contain plain text and placeholders $0...$9 and $@,
       corresponding to the arguments.

       exit [bg] [top] [parent] [kill] [code]

       exit will exit from lftp or move to background if there are active  jobs.  If  no  job  is
       active,  code  is  passed  to  operating  system  as lftp's termination status. If code is
       omitted, the exit code of last command is used.

       `exit bg' forces moving to background when cmd:move-background is false.  `exit top' makes
       top  level  `shell'  (internal lftp command executor) terminate.  `exit parent' terminates
       the parent shell when running a nested script.  `exit kill' kills all numbered jobs before
       exiting.  The  options can be combined, e.g.  `at 08:00 -- exit top kill &' kills all jobs
       and makes lftp exit at specified time.

       fg

       Alias for `wait'.

       find [OPTS] directory...

       List files in the directory (current directory by default)  recursively.   This  can  help
       with servers lacking ls -R support. You can redirect output of this command. Options:

            -d MD, --max-depth=MD   specify maximum scan depth
            -l,    --ls             use long listing format

       ftpcopy

       Obsolete. Use one of the following instead:
            get ftp://... -o ftp://...
            get -O ftp://... file1 file2...
            put ftp://...
            mput ftp://.../*
            mget -O ftp://... ftp://.../*
       or  other combinations to get FXP transfer (directly between two FTP servers).  lftp would
       fallback to plain copy (via client) if FXP transfer cannot be initiated or ftp:use-fxp  is
       false.

       get [-E] [-a] [-c] [-e] [-P N] [-O base] rfile [-o lfile] ...

       Retrieve  the  remote  file rfile and store it as the local file lfile.  If -o is omitted,
       the file is stored to local file named as base name of rfile. You can get  multiple  files
       by  specifying  multiple instances of rfile (and -o lfile). Does not expand wildcards, use
       mget for that.

            -c          continue, reget
            -E          delete source files after successful transfer
            -e          delete target file before the transfer
            -a          use ascii mode (binary is the default)
            -P N        download N files in parallel
            -O <base>   specifies base directory or URL where files should be placed

       Examples:
            get README
            get README -o debian.README
            get README README.mirrors
            get README -o debian.README README.mirrors -o debian.mirrors
            get README -o ftp://some.host.org/debian.README
            get README -o ftp://some.host.org/debian-dir/   (end slash is important)

       get1 [OPTS] rfile

       Transfer a single file. Options:

            -o <lfile>                  destination file name (default - basename of rfile)
            -c                          continue, reget
            -E                          delete source files after successful transfer
            -a                          use ascii mode (binary is the default)
            -d                          create the directory of the target file
            --source-region=<from-to>   transfer specified region of source file
            --target-position=<pos>     position in target file to write data at

       glob  [OPTS] [command] patterns

       Glob given patterns containing metacharacters and pass result to given command  or  return
       appropriate exit code.

            -f            plain files (default)
            -d            directories
            -a            all types
            --exist       return zero exit code when the patterns expand to non-empty list
            --not-exist   return zero exit code when the patterns expand to an empty list

       Examples:
            glob echo *
            glob --exist *.csv && echo "There are *.csv files"

       help [cmd]

       Print help for cmd or if no cmd was specified print a list of available commands.

       jobs [OPTS] [job_no...]

       List running jobs. If job_no is specified, only list a job with that number.  Options:

            -v   verbose, several -v increase verbosity
            -r   list just one specified job without recursion

       kill all|job_no

       Delete specified job with job_no or all jobs.  (For job_no see jobs)

       lcd ldir

       Change  current  local  directory ldir. The previous local directory is stored as `-'. You
       can do `lcd -' to change the directory back.

       ln [-s] existing-file new-link

       Make a hard/symbolic link to an existing file.  Option -s selects creation of  a  symbolic
       link.

       local command

       Run  specified  command  with  local  directory file:// session instead of remote session.
       Examples:
            local pwd
            local ls
            local mirror /dir1 /dir2

       lpwd

       Print current working directory on local machine.

       ls params

       List remote files. You can redirect output of this command to file or via pipe to external
       command.  By default, ls output is cached, to see new listing use rels or cache flush.

       mget [-c] [-d] [-a] [-E] [-e] [-P N] [-O base] files

       Gets selected files with expanded wildcards.

            -c          continue, reget.
            -d          create  directories  the  same  as file names and get the files into them
                        instead of current directory.
            -E          delete source files after successful transfer
            -e          delete target file before the transfer
            -a          use ascii mode (binary is the default)
            -P N        download N files in parallel
            -O <base>   specifies base directory or URL where files should be placed

       mirror [OPTS] [source [target]]

       Mirror specified source directory to the target directory.

       By default the source is remote and the target is a local directory.  When using  -R,  the
       source  directory  is local and the target is remote.  If the target directory is omitted,
       base name of the source directory is used.  If both directories are omitted, current local
       and remote directories are used.

       The source and/or the target may be URLs pointing to directories.

       If  the  target  directory ends with a slash (except the root directory) then base name of
       the source directory is appended.

            -c,      --continue                 continue a mirror job if possible
            -e,      --delete                   delete files not present at the source
                     --delete-excluded          delete files excluded at the target
                     --delete-first             delete old files before transferring new ones
                     --depth-first              descend into subdirectories  before  transferring
                                                files
                     --scan-all-first           scan    all    directories   recursively   before
                                                transferring files
            -s,      --allow-suid               set suid/sgid bits according to the source
                     --allow-chown              try to set owner and group on files
                     --ascii                    use ascii mode transfers (implies --ignore-size)
                     --ignore-time              ignore time when deciding whether to download
                     --ignore-size              ignore size when deciding whether to download
                     --only-missing             download only missing files
                     --only-existing            download only files already existing at target
            -n,      --only-newer               download only newer files (-c won't work)
                     --upload-older             upload even files older than the target ones
                     --transfer-all             transfer all files, even seemingly  the  same  at
                                                the target site
                     --no-empty-dirs            don't    create    empty   directories   (implies
                                                --depth-first)
            -r,      --no-recursion             don't go to subdirectories
                     --recursion=MODE           go to subdirectories on a condition
                     --no-symlinks              don't create symbolic links
            -p,      --no-perms                 don't set file permissions
                     --no-umask                 don't apply umask to file modes
            -R,      --reverse                  reverse mirror (put files)
            -L,      --dereference              download symbolic links as files
                     --overwrite                overwrite plain files without removing them first
                     --no-overwrite             remove  and  re-create  plain  files  instead  of
                                                overwriting

            -N,      --newer-than=SPEC          download only files newer than specified time
                     --older-than=SPEC          download only files older than specified time
                     --size-range=RANGE         download only files with size in specified range
            -P,      --parallel[=N]             download N files in parallel
                     --use-pget[-n=N]           use pget to transfer every single file
                     --on-change=CMD            execute the command if anything has been changed
                     --loop                     repeat mirror until no changes found
            -i RX,   --include=RX               include matching files
            -x RX,   --exclude=RX               exclude matching files
            -I GP,   --include-glob=GP          include matching files
            -X GP,   --exclude-glob=GP          exclude matching files
                     --include-rx-from=FILE
                     --exclude-rx-from=FILE
                     --include-glob-from=FILE
                     --exclude-glob-from=FILE   load  include/exclude patterns from the file, one
                                                per line
            -f FILE, --file=FILE                mirror a  single  file  or  globbed  group  (e.g.
                                                /path/to/*.txt)
            -F DIR,  --directory=DIR            mirror  a single directory or globbed group (e.g.
                                                /path/to/dir*)
            -O DIR,  --target-directory=DIR     target base path or URL
            -v,      --verbose[=level]          verbose operation
                     --log=FILE                 write lftp commands being executed to FILE
                     --script=FILE              write lftp commands to FILE,  but  don't  execute
                                                them
                     --just-print, --dry-run    same as --script=-
                     --max-errors=N             stop after this number of errors
                     --skip-noaccess            don't try to transfer files with no read access.
                     --use-cache                use cached directory listings
                     --Remove-source-files      remove  source  files  after  transfer  (use with
                                                caution)
                     --Remove-source-dirs       remove  source  files   and   directories   after
                                                transfer (use with caution).  Top level directory
                                                is not removed if it's name ends with a slash.
                     --Move                     same as --Remove-source-dirs
            -a                                  same as --allow-chown --allow-suid --no-umask
            RX is an extended regular expression, just like in egrep(1).

       GP is a glob pattern, e.g. `*.zip'.

       Include and exclude options can be specified multiple times.  It  means  that  a  file  or
       directory  would be mirrored if it matches an include and does not match to excludes after
       the include, or does not match anything and the first check is  exclude.  Directories  are
       matched with a slash appended.

       Note  that  symbolic  links  are  not created when uploading to remote server, because FTP
       protocol cannot do it. To upload files the links refer to, use `mirror -RL' command (treat
       symbolic links as files).

       For  options  --newer-than  and  --older-than  you  can  either  specify  a  file  or time
       specification like that used by at(1) command, e.g.  `now-7days' or  `week  ago'.  If  you
       specify a file, then modification time of that file will be used.

       Verbosity  level  can  be  selected using --verbose=level option or by several -v options,
       e.g. -vvv. Levels are:
            0 - no output (default)
            1 - print actions
            2 - +print not deleted file names (when -e is not specified)
            3 - +print directory names which are mirrored

       --only-newer turns off file size comparison and uploads/downloads only newer files even if
       size is different. By default older files are transferred and replace newer ones.

       --upload-older  allows  replacing newer remote files with older ones (when the target side
       is remote). Some remote back-ends cannot preserve timestamps so the  default  is  to  keep
       newer files.

       Recursion  mode  can  be  one  of  `always',  `never', `missing', `newer'. With the option
       `newer' mirror compares timestamps of directories and enters a directory  only  if  it  is
       older  or  missing  on  the  target  side. Be aware that when a file changes the directory
       timestamp may stay the same, so mirror won't process that directory.

       The options --file and --directory may be used multiple times and even mixed provided that
       base directories of the paths are the same.

       You  can  mirror  between  two servers if you specify URLs instead of directories.  FXP is
       automatically used for transfers between FTP servers, if possible.

       Some FTP servers hide dot-files by default (e.g. .htaccess), and show them only when  LIST
       command is used with -a option. In such case try to use `set ftp:list-options -a'.

       --depth-first, --no-empty-dirs and setting mirror:no-empty-dirs=true.

       mkdir [-p] [-f] dir(s)

       Make remote directories. If -p is used, make all components of paths.  The -f option makes
       mkdir quiet and suppresses messages.

       module module [ args ]

       Load given module using dlopen(3) function. If module name does not contain a slash, it is
       searched  in  directories  specified  by  module:path  variable.   Arguments are passed to
       module_init function. See README.modules for technical details.

       more files

       Same as `cat files | more'. if PAGER is set, it is used as filter.  (See  also  cat,  zcat
       and zmore)

       mput [-c] [-d] [-a] [-E] [-e] [-P N] [-O base] files

       Upload  files  with  wildcard expansion. By default it uses the base name of local name as
       remote one. This can be changed by `-d' option.

            -c          continue, reput
            -d          create directories the same as in file names and put the files into  them
                        instead of current directory
            -E          delete source files after successful transfer (dangerous)
            -e          delete target file before the transfer
            -a          use ascii mode (binary is the default)
            -P N        upload N files in parallel
            -O <base>   specifies base directory or URL where files should be placed

       mrm file(s)

       Same as `glob rm'. Removes specified file(s) with wildcard expansion.

       mmv [-O directory] file(s) directory

       Move specified files to a target directory. The target directory can be specified after -O
       option or as the last argument.

            -O <dir>   specifies the target directory where files should be placed

       mv file1 file2

       Rename file1 to file2. No wildcard exmapsion is performed.  If  you  give  more  than  two
       arguments, or the last argument ends with a slash, then mmv command is executed instead.

       nlist [args]

       List remote file names

       open [OPTS] site

       Select  a  server  by  host  name,  URL  or  bookmark.  When  an URL or bookmark is given,
       automatically change the current working directory to the directory of the URL.  Options:

            -e cmd            execute the command just after selecting the server
            -u user[,pass]    use the user/password for authentication
            -p port           use the port for connection
            -s slot           assign the connection to this slot
            -d                enable debug
            -B                don't look up bookmarks
            --user user       use the user for authentication
            --password pass   use the password for authentication
            --env-password    take password from LFTP_PASSWORD environment variable
            site              host name, URL or bookmark name

       pget [OPTS] rfile [-o lfile]

       Gets the specified file using several connections. This can speed up transfer,  but  loads
       the  net and server heavily impacting other users. Use only if you really have to transfer
       the file ASAP.  Options:

            -c           continue transfer. Requires lfile.lftp-pget-status file.
            -n maxconn   set maximum number of connections (default is taken from  pget:default-n
                         setting)

       put [-E] [-a] [-c] [-e] [-P N] [-O base] lfile [-o rfile]

       Upload  lfile  with  remote  name  rfile. If -o omitted, the base name of lfile is used as
       remote name. Does not expand wildcards, use mput for that.

            -o <rfile>   specifies remote file name (default - basename of lfile)
            -c           continue, reput. It requires permission to overwrite remote files
            -E           delete source files after successful transfer (dangerous)
            -e           delete target file before the transfer
            -a           use ascii mode (binary is the default)
            -P N         upload N files in parallel
            -O <base>    specifies base directory or URL where files should be placed

       pwd [-p]

       Print current remote URL. Use `-p' option to show password in the URL.

       queue [-n num ] cmd

       Add the given command to queue for sequential execution. Each site has its own queue. `-n'
       adds  the  command  before  the  given item in the queue. Don't try to queue `cd' or `lcd'
       commands, it may confuse lftp. Instead do the cd/lcd before `queue' command, and  it  will
       remember  the  place  in  which  the  command is to be done. It is possible to queue up an
       already running job by `queue wait <jobno>', but the job will continue execution  even  if
       it is not the first in queue.

       `queue  stop'  will  stop  the  queue,  it  will not execute any new commands, but already
       running jobs will continue to run. You can use `queue stop' to  create  an  empty  stopped
       queue.  `queue  start' will resume queue execution.  When you exit lftp, it will start all
       stopped queues automatically.

       `queue' with no arguments will either create a stopped queue or print queue status.

       queue --delete|-d [index or wildcard expression]

       Delete one or more items from the queue. If no argument is given, the last  entry  in  the
       queue is deleted.

       queue --move|-m <index or wildcard expression> [index]

       Move  the  given  items  before  the given queue index, or to the end if no destination is
       given.

            -q   Be quiet.
            -v   Be verbose.
            -Q   Output in a format that can be used to re-queue. Useful with --delete.

       Examples:
            > get file &
            [1] get file
            > queue wait 1
            > queue get another_file
            > cd a_directory
            > queue get yet_another_file

            queue -d 3             Delete the third item in the queue.
            queue -m 6 4           Move the sixth item in the queue before the fourth.
            queue -m "get*zip" 1   Move all commands matching "get*zip" to the beginning  of  the
                                   queue.  (The order of the items is preserved.)
            queue -d "get*zip"     Delete all commands matching "get*zip".

       quote cmd

       For FTP - send the command uninterpreted. Use with caution - it can lead to unknown remote
       state and thus will cause reconnect. You cannot be sure that any change  of  remote  state
       because of quoted command is solid - it can be reset by reconnect at any time.

       For  HTTP - specific to HTTP action. Syntax: ``quote <command> [<args>]''.  Command may be
       ``set-cookie'' or ``post''.
            open http://www.site.net
            quote set-cookie "variable=value; othervar=othervalue"
            set http:post-content-type application/x-www-form-urlencoded
            quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file

       For FISH - send the command uninterpreted. This can be used to execute arbitrary  commands
       on server. The command must not take input or print ### at new line beginning. If it does,
       the protocol will become out of sync.
            open fish://server
            quote find -name \*.zip

       reget rfile [-o lfile]

       Same as `get -c'.

       rels [args]

       Same as `ls', but ignores the cache.

       renlist [args]

       Same as `nlist', but ignores the cache.

       repeat [OPTS] [[-d] delay] [command]

       Repeat specified command with a delay between iterations.  Default delay  is  one  second,
       default command is empty.

            -c <count>    maximum number of iterations
            -d <delay>    delay between iterations
            --while-ok    stop when command exits with non-zero code
            --until-ok    stop when command exits with zero code
            --weak        stop when lftp moves to background.

       Examples:
            repeat at tomorrow -- mirror
            repeat 1d mirror

       reput lfile [-o rfile]

       Same as `put -c'.

       rm [-r] [-f] files

       Remove  remote  files.   Does  not expand wildcards, use mrm for that. -r is for recursive
       directory remove. Be careful, if something goes wrong you  can  lose  files.  -f  suppress
       error messages.

       rmdir dir(s)

       Remove remote directories.

       scache [session]

       List cached sessions or switch to specified session.

       set [var [val]]

       Set  variable  to given value. If the value is omitted, unset the variable.  Variable name
       has format ``name/closure'', where closure can specify exact application of  the  setting.
       See  below  for details.  If set is called with no variable then only altered settings are
       listed.  It can be changed by options:

            -a   list all settings, including default values
            -d   list only default values, not necessary current ones

       site site_cmd

       Execute site command site_cmd and output the result.  You can redirect its output.

       sleep interval

       Sleep given time interval and exit. Interval is in seconds by default, but can be suffixed
       with 'm', 'h', 'd' for minutes, hours and days respectively.  See also at.

       slot [name]

       Select  specified  slot  or  list all slots allocated. A slot is a connection to a server,
       somewhat like a virtual console. You can create  multiple  slots  connected  to  different
       servers  and switch between them. You can also use slot:name as a pseudo-URL evaluating to
       that slot location.

       Default readline binding allows quick switching between slots named  0-9  using  Meta-0  -
       Meta-9 keys (often you can use Alt instead of Meta).

       source file
       source -e command

       Execute commands recorded in file file or returned by specified external command.
            source ~/.lftp/rc
            source -e echo help

       suspend

       Stop lftp process. Note that transfers will be also stopped until you continue the process
       with shell's fg or bg commands.

       torrent [OPTS] torrent-files...

       Start BitTorrent process for the given torrent-files, which can  be  a  local  file,  URL,
       magnet  link  or  plain info_hash written in hex or base32.  Local wildcards are expanded.
       Existing files are first validated unless --force-valid option is  given.  Missing  pieces
       are  downloaded.  Files  are stored in specified directory or current working directory by
       default. Seeding continues until ratio reaches torrent:stop-on-ratio setting  or  time  of
       torrent:seed-max-time runs out.

       Options:

            -O <directory>           specifies base directory where files should be placed
            --force-valid            skip file validation (if you are sure they are ok).
            --only-new               stop  if  the  metadata  is  known already or the torrent is
                                     complete.
            --only-incomplete        stop if the torrent is already complete.
            --dht-bootstrap=<node>   bootstrap DHT by sending a query to  specified  node.   This
                                     option  should  be  used  just  once  to fill the local node
                                     cache.  Port number may be given  after  colon,  default  is
                                     6881.     Here    are    some   nodes   for   bootstrapping:
                                     dht.transmissionbt.com,                 router.utorrent.com,
                                     router.bittorrent.com.
            --share                  share specified file or directory using BitTorrent protocol.
                                     Magnet link is printed when it's ready.

       user user [pass]
       user URL [pass]

       Use specified info for remote login. If you specify an URL with  user  name,  the  entered
       password will be cached so that future URL references can use it.

       version

       Print lftp version.

       wait [jobno]
       wait all

       Wait for specified job to terminate. If jobno is omitted, wait for last backgrounded job.

       `wait all' waits for all jobs to terminate.

       zcat files

       Same as cat, but filter each file through zcat. (See also cat, more and zmore)

       zmore files

       Same as more, but filter each file through zcat. (See also cat, zcat and more)

   Settings
       On  startup,  lftp executes ~/.lftprc and ~/.lftp/rc (or ~/.config/lftp/rc if ~/.lftp does
       not exist).  You can place aliases and `set' commands there. Some  people  prefer  to  see
       full protocol debug, use `debug' to turn the debug on.

       There  is  also  a  system-wide  startup  file  in /etc/lftp.conf.  It can be in different
       directory, see FILES section.

       lftp has the following settable variables (you can also use `set -a' to see all  variables
       and their values):

       bmk:save-passwords (boolean)
              save  plain text passwords in ~/.local/share/lftp/bookmarks or ~/.lftp/bookmarks on
              `bookmark add' command.  Off by default.

       cache:cache-empty-listings (boolean)
              When false, empty listings are not cached.

       cache:enable (boolean)
              When false, cache is disabled.

       cache:expire (time interval)
              Positive cache entries expire in this time interval.

       cache:expire-negative (time interval)
              Negative cache entries expire in this time interval.

       cache:size (number)
              Maximum cache size. When exceeded, oldest cache entries will be removed from cache.

       cmd:at-exit (string)
              the commands in string are executed before lftp exits or moves to background.

       cmd:at-exit-bg (string)
              the commands in string are executed before backgrounded lftp exits.

       cmd:at-exit-fg (string)
              the commands in string are executed before foreground lftp exits.

       cmd:at-background (string)
              the commands in string are executed before lftp moves to background.

       cmd:at-terminate (string)
              the commands in string are executed before lftp terminates (either backgrounded  or
              foreground).

       cmd:at-finish (string)
              the commands in string are executed once when all jobs are done.

       cmd:at-queue-finish (string)
              the commands in string are executed once when all jobs in a queue are done.

       cmd:cls-completion-default (string)
              default  cls  options  for  displaying  completion  choices.  For  example, to make
              completion listings show file sizes, set cmd:cls-completion-default to `-s'.

       cmd:cls-default (string)
              default cls command options. They can be overridden by explicitly given options.

       cmd:cls-exact-time (boolean)
              when true, cls would try to get exact file modification time even if it means  more
              requests to the server.

       cmd:csh-history (boolean)
              enables csh-like history expansion.

       cmd:default-protocol (string)
              The value is used when `open' is used with just host name without protocol. Default
              is `ftp'.

       cmd:fail-exit (boolean)
              if true, exit when a command fails and the following command is unconditional (i.e.
              does not begin with || or &&). lftp exits after the unconditional command is issued
              without executing it.

       cmd:interactive (tri-boolean)
              when true, lftp acts interactively, handles terminal signals and outputs some extra
              messages. Default is auto and depends on stdin being a terminal.

       cmd:long-running (seconds)
              time  of command execution, which is considered as `long' and a beep is done before
              next prompt. 0 means off.

       cmd:ls-default (string)
              default ls argument

       cmd:move-background (boolean)
              when false, lftp refuses to go to background when exiting. To force it,  use  `exit
              bg'.

       cmd:move-background-detach (boolean)
              when  true (default), lftp detaches itself from the control terminal when moving to
              background, it is possible to attach back using `attach' command; when false,  lftp
              tricks  the  shell  to  move lftp to background process group and continues to run,
              then fg shell command brings lftp back to foreground unless it has  done  all  jobs
              and terminated.

       cmd:prompt (string)
              The prompt. lftp recognizes the following backslash-escaped special characters that
              are decoded as follows:
              \@     insert @ if the current remote site user is not default
              \a     an ASCII bell character (07)
              \e     an ASCII escape character (033)
              \h     the remote hostname you are connected to
              \n     newline
              \s     the name of the client (lftp)
              \S     current slot name
              \u     the username of the remote site user you are logged in as
              \U     the URL of the remote site (e.g., ftp://g437.ub.gu.se/home/james/src/lftp)
              \v     the version of lftp (e.g., 2.0.3)
              \w     the current working directory at the remote site
              \W     the base name of the current working directory at the remote site
              \l     the current working directory at the local site
              \L     the base name of the current working directory at the local site
              \nnn   the character corresponding to the octal number nnn
              \\     a backslash
              \?     skips next character if previous substitution was empty.
              \[     begin a sequence of non-printing characters, which could be used to embed  a
                     terminal control sequence into the prompt
              \]     end a sequence of non-printing characters

       cmd:parallel (number)
              Number  of  jobs  run in parallel in non-interactive mode. For example, this may be
              useful for scripts with multiple `get' commands. Note that setting this to a  value
              greater  than  1  changes  conditional  execution  behaviour,  basically  makes  it
              inconsistent.

       cmd:queue-parallel (number)
              Number of jobs run in parallel in a queue.

       cmd:remote-completion (boolean)
              a boolean to control whether or not lftp uses remote completion. When true, Tab key
              guesses  if  the  word  being completed should be a remote file name. Meta-Tab does
              remote completion always. So you can force remote  completion  with  Meta-Tab  when
              cmd:remote-completion is false or when the guess is wrong.

       cmd:save-cwd-history (boolean)
              when  true,  lftp saves last CWD of each site to ~/.local/share/lftp/cwd_history or
              ~/.lftp/cwd_history, allowing to do ``cd -'' after lftp restart. Default is true.

       cmd:save-rl-history (boolean)
              when  true,  lftp  saves  readline  history  to  ~/.local/share/lftp/rl_history  or
              ~/.lftp/rl_history on exit.  Default is true.

       cmd:show-status (boolean)
              when false, lftp does not show status line on terminal. Default is true.

       cmd:set-term-status (boolean)
              when  true, lftp updates terminal status if supported (e.g. xterm). The closure for
              this setting is the terminal type from TERM environment variable.

       cmd:status-interval (timeinterval)
              the time interval between status updates.

       cmd:stifle-rl-history (number)
              the number of lines to keep in readline history.

       cmd:term-status (string)
              the format string to use to display terminal status. The closure for  this  setting
              is  the  terminal  type  from  TERM  environment variable. Default uses ``tsl'' and
              ``fsl'' termcap values.

              The following escapes are supported:

                   \a   bell
                   \e   escape
                   \n   new line
                   \s   "lftp"
                   \v   lftp version
                   \T   the status string

       cmd:time-style (string)
              This setting is the default value for cls --time-style option.

       cmd:trace (boolean)
              when true, lftp prints the commands it executes (like sh -x).

       cmd:verify-host (boolean)
              if true, lftp resolves host  name  immediately  in  `open'  command.   It  is  also
              possible to skip the check for a single `open' command if `&' is given, or if ^Z is
              pressed during the check.

       cmd:verify-path (boolean)
              if true, lftp checks the path given in `cd' command.  It is also possible  to  skip
              the check for a single `cd' command if `&' is given, or if ^Z is pressed during the
              check.  Examples:
                   set cmd:verify-path/hftp://* false
                   cd directory &

       cmd:verify-path-cached (boolean)
              When false, `cd'  to  a  directory  known  from  cache  as  existent  will  succeed
              immediately.  Otherwise the verification will depend on cmd:verify-path setting.

       color:use-color (tri-boolean)
              when  true,  cls  command  and completion output colored file listings according to
              color:dir-colors setting.  When set to auto, colors  are  used  when  output  is  a
              terminal.

       color:dir-colors (string)
              file  listing  color  description.  By  default  the value of LS_COLORS environment
              variable is used. See dircolors(1).

       dns:SRV-query (boolean)
              query for SRV records and use them before gethostbyname. The SRV records  are  only
              used if port is not explicitly specified. See RFC2052 for details.

       dns:cache-enable (boolean)
              enable DNS cache. If it is off, lftp resolves host name each time it reconnects.

       dns:cache-expire (time interval)
              time to live for DNS cache entries. It has format <number><unit>+, e.g.  1d12h30m5s
              or just 36h. To disable expiration, set it to `inf' or `never'.

       dns:cache-size (number)
              maximum number of DNS cache entries.

       dns:fatal-timeout (time interval)
              limit the time for DNS queries. If DNS server is unavailable too  long,  lftp  will
              fail to resolve a given host name. Set to `never' to disable.

       dns:order (list of protocol names)
              sets  the order of DNS queries. Default is ``inet6 inet'' which means first look up
              address in inet6 family, then inet and use them in that order.   To  disable  inet6
              (AAAA) lookup, set this variable to ``inet''.

       dns:use-fork (boolean)
              if true, lftp will fork before resolving host address. Default is true.

       dns:max-retries (number)
              If  zero,  there  is  no  limit  on  the number of times lftp will try to lookup an
              address.  If > 0, lftp will try only this number of times to look up an address  of
              each address family in dns:order.

       dns:name (string)
              This  setting  can  be used to substitute a host name alias with another name or IP
              address. The host name alias is used as the setting closure, the  substituted  name
              or  IP  address is in the value. Multiple names or IP addresses can be separated by
              comma.

       file:charset (string)
              local character set. It is set from current locale initially.

       file:use-lock (boolean)
              when true, lftp uses advisory locking on local files when opening them.

       file:use-fallocate (boolean)
              when true, lftp uses fallocate(2) or  posix_fallocate(3)  to  pre-allocate  storage
              space and reduce file fragmentation in pget and torrent commands.

       fish:auto-confirm (boolean)
              when true, lftp answers ``yes'' to all ssh questions, in particular to the question
              about a new host key. Otherwise it answers ``no''.

       fish:charset (string)
              the character set used by fish server  in  requests,  replies  and  file  listings.
              Default is empty which means the same as local.

       fish:connect-program (string)
              the  program  to use for connecting to remote server. It should support `-l' option
              for user name, `-p' for port number. Default is `ssh -a -x'.  You  can  set  it  to
              `rsh',  for  example.  For  private key authentication add `-i' option with the key
              file.

       fish:shell (string)
              use specified shell on server side. Default is /bin/sh. On  some  systems,  /bin/sh
              exits when doing cd to a non-existent directory. lftp can handle that but it has to
              reconnect. Set it to /bin/bash for such systems if bash is installed.

       ftp:acct (string)
              Send this string in ACCT command after login. The result is ignored.   The  closure
              for this setting has format user@host.

       ftp:anon-pass (string)
              sets  the  password  used  for  anonymous  FTP  access  authentication.  Default is
              "lftp@".

       ftp:anon-user (string)
              sets the user name used  for  anonymous  FTP  access  authentication.   Default  is
              "anonymous".

       ftp:auto-sync-mode (regex)
              if first server message matches this regex, turn on sync mode for that host.

       ftp:catch-size (boolean)
              when  there  is  no  support for SIZE command, try to catch file size from the "150
              Opening data connection" reply.

       ftp:charset (string)
              the character set used by FTP  server  in  requests,  replies  and  file  listings.
              Default  is empty which means the same as local. This setting is only used when the
              server does not support UTF8.

       ftp:client (string)
              the name of FTP client to send with CLNT command, if supported by server.  If it is
              empty, then no CLNT command will be sent.

       ftp:compressed-re (regex)
              files  with  matching  name  will be considered compressed and "MODE Z" will not be
              used for them.

       ftp:bind-data-socket (boolean)
              bind data socket to the interface of control connection (in passive mode).  Default
              is true, exception is the loopback interface.

       ftp:fix-pasv-address (boolean)
              if  true,  lftp  will try to correct address returned by server for PASV command in
              case when server address is in public network and PASV returns an  address  from  a
              private  network.  In this case lftp would substitute server address instead of the
              one returned by PASV command, port number would not be changed.  Default is true.

       ftp:fxp-passive-source (boolean)
              if true, lftp will try to set up source FTP server in passive mode first, otherwise
              destination  one.  If first attempt fails, lftp tries to set them up the other way.
              If the other disposition fails too,  lftp  falls  back  to  plain  copy.  See  also
              ftp:use-fxp.

       ftp:home (string)
              Initial directory. Default is empty string which means auto. Set this to `/' if you
              don't like the look of %2F in FTP URLs. The closure for  this  setting  has  format
              user@host.

       ftp:ignore-pasv-address (boolean)
              If  true,  lftp uses control connection address instead of the one returned in PASV
              reply for data connection. This can be useful for broken NATs.  Default is false.

       ftp:list-empty-ok (boolean)
              if set to false, empty lists from LIST command will be treated  as  incorrect,  and
              another method (NLST) will be used.

       ftp:list-options (string)
              sets  options  which  are  always appended to LIST command. It can be useful to set
              this to `-a' if server does not show dot (hidden) files  by  default.   Default  is
              empty.

       ftp:mode-z-level (number)
              compression level (0-9) for uploading with MODE Z.

       ftp:nop-interval (seconds)
              delay between NOOP commands when downloading tail of a file. This is useful for FTP
              servers which send "Transfer complete" message before flushing  data  transfer.  In
              such cases NOOP commands can prevent connection timeout.

       ftp:passive-mode (boolean)
              sets  passive  FTP  mode. This can be useful if you are behind a firewall or a dumb
              masquerading router. In passive mode lftp uses PASV command, not the  PORT  command
              which is used in active mode. In passive mode lftp itself makes the data connection
              to the server; in active mode the  server  connects  to  lftp  for  data  transfer.
              Passive mode is the default.

       ftp:port-ipv4 (ipv4 address)
              specifies  an  IPv4 address to send with PORT command. Default is empty which means
              to send the address of local end of control connection.

       ftp:port-range (from-to)
              allowed port range for the local side of the data connection.  Format  is  min-max,
              or `full' or `any' to indicate any port. Default is `full'.

       ftp:prefer-epsv (boolean)
              use EPSV as preferred passive mode. Default is `false'.

       ftp:proxy (URL)
              specifies  FTP  proxy to use.  To disable proxy set this to empty string. Note that
              it is a FTP proxy which uses FTP protocol, not FTP  over  HTTP.  Default  value  is
              taken from environment variable ftp_proxy if it starts with ``ftp://''. If your FTP
              proxy requires authentication, specify user name  and  password  in  the  URL.   If
              ftp:proxy  starts  with  http://  then  hftp protocol (FTP over HTTP proxy) is used
              instead of FTP automatically.

       ftp:proxy-auth-type (string)
              When set to ``joined'', lftp sends ``user@proxy_user@ftp.example.org'' as user name
              to proxy, and ``password@proxy_password'' as password.

              When  set  to ``joined-acct'', lftp sends ``user@ftp.example.org proxy_user'' (with
              space) as user name to proxy. The site password is sent  as  usual  and  the  proxy
              password is expected in the following ACCT command.

              When  set  to  ``open'',  lftp  first  sends proxy user and proxy password and then
              ``OPEN ftp.example.org'' followed by ``USER user''.  The site password is then sent
              as usual.

              When  set to ``user'' (default), lftp first sends proxy user and proxy password and
              then ``user@ftp.example.org'' as user name.  The site  password  is  then  sent  as
              usual.

              When     set     to     ``proxy-user@host'',     lftp     first     sends    ``USER
              proxy_user@ftp.example.org'', then proxy password. The site user and  password  are
              then sent as usual.

       ftp:rest-list (boolean)
              allow  usage  of  REST  command before LIST command. This might be useful for large
              directories, but some FTP servers silently ignore REST before LIST.

       ftp:rest-stor (boolean)
              if false, lftp will not try to use REST before STOR. This can be  useful  for  some
              buggy  servers which corrupt (fill with zeros) the file if REST followed by STOR is
              used.

       ftp:retry-530 (regex)
              Retry on server reply 530 for PASS command if text matches this regular expression.
              This  setting  should be useful to distinguish between overloaded server (temporary
              condition) and incorrect password (permanent condition).

       ftp:retry-530-anonymous (regex)
              Additional regular expression for anonymous login, like ftp:retry-530.

       ftp:site-group (string)
              Send this string in SITE GROUP command after login. The  result  is  ignored.   The
              closure for this setting has format user@host.

       ftp:skey-allow (boolean)
              allow sending skey/opie reply if server appears to support it. On by default.

       ftp:skey-force (boolean)
              do  not  send  plain  text  password  over  the  network, use skey/opie instead. If
              skey/opie is not available, assume failed login. Off by default.

       ftp:ssl-allow (boolean)
              if true, try to negotiate SSL connection with FTP server for non-anonymous  access.
              Default  is  true.  This  and  other  SSL  settings  are only available if lftp was
              compiled with an ssl/tls library.

       ftp:ssl-auth (string)
              the argument for AUTH command, can be one of SSL, TLS, TLS-P, TLS-C.   See  RFC4217
              for explanations. By default TLS or SSL will be used, depending on FEAT reply.

       ftp:ssl-data-use-keys (boolean)
              if  true, lftp loads ssl:key-file for protected data connection too. When false, it
              does not, and the server can match data and  control  connections  by  session  ID.
              Default is true.

       ftp:ssl-force (boolean)
              if  true,  refuse  to  send  password  in  clear  when server does not support SSL.
              Default is false.

       ftp:ssl-protect-data (boolean)
              if true, request SSL connection for  data  transfers.  This  is  cpu-intensive  but
              provides privacy. Default is false.

       ftp:ssl-protect-fxp (boolean)
              if  true,  request  SSL connection for data transfer between two FTP servers in FXP
              mode. CPSV or SSCN command will be used in that case. If SSL connection  fails  for
              some  reason,  lftp  would try unprotected FXP transfer unless ftp:ssl-force is set
              for any of the two servers. Default is false.

       ftp:ssl-protect-list (boolean)
              if true, request SSL connection for file list transfers. Default is true.

       ftp:ssl-use-ccc (boolean)
              if true, lftp would issue CCC command after  logon,  thus  disable  ssl  protection
              layer on control connection.

       ftp:stat-interval (time interval)
              interval between STAT commands. Default is 1 second.

       ftp:strict-multiline (boolean)
              when  true, lftp strictly checks for multiline reply format (expects it to end with
              the same code as it started with). When false, this check is relaxed.

       ftp:sync-mode (boolean)
              if true, lftp will send one command at a time and wait for response. This might  be
              useful  if you are using a buggy FTP server or router. When it is off, lftp sends a
              pack of commands and waits for responses - it speeds up operation when  round  trip
              time  is significant.  Unfortunately it does not work with all FTP servers and some
              routers have troubles with it, so it is on by default.

       ftp:timezone (string)
              Assume this timezone for time in listings returned by LIST command.   This  setting
              can  be  GMT  offset [+|-]HH[:MM[:SS]] or any valid TZ value (e.g. Europe/Moscow or
              MSK-3MSD,M3.5.0,M10.5.0/3). The default is GMT.  Set it to an empty value to assume
              local timezone specified by environment variable TZ.

       ftp:too-many-re (regexp)
              Decrease  the  dynamic  connection  limit  when 421 reply line matches this regular
              expression.

       ftp:trust-feat (string)
              When true, assume that FEAT returned data are correct and don't use common protocol
              extensions like SIZE, MDTM, REST if they are not listed.  Default is false.

       ftp:use-abor (boolean)
              if false, lftp does not send ABOR command but closes data connection immediately.

       ftp:use-allo (boolean)
              when true (default), lftp sends ALLO command before uploading a file.

       ftp:use-feat (boolean)
              when  true  (default), lftp uses FEAT command to determine extended features of ftp
              server.

       ftp:use-fxp (boolean)
              if true, lftp will try to set up direct connection between two ftp servers.

       ftp:use-hftp (boolean)
              when ftp:proxy points to an http proxy, this  setting  selects  hftp  method  (GET,
              HEAD) when true, and CONNECT method when false. Default is true.

       ftp:use-ip-tos (boolean)
              when true, lftp uses IPTOS_LOWDELAY for control connection and IPTOS_THROUGHPUT for
              data connections.

       ftp:lang (boolean)
              the language selected  with  LANG  command,  if  supported  as  indicated  by  FEAT
              response. Default is empty which means server default.

       ftp:use-mdtm (boolean)
              when true (default), lftp uses MDTM command to determine file modification time.

       ftp:use-mdtm-overloaded (boolean)
              when  true,  lftp  uses  two argument MDTM command to set file modification time on
              uploaded files. Default is false.

       ftp:use-mlsd (boolean)
              when true, lftp will use MLSD command for directory listing  if  supported  by  the
              server.

       ftp:use-mode-z (boolean)
              when  true, lftp will use "MODE Z" if supported by the server to perform compressed
              transfers.

       ftp:use-site-idle (boolean)
              when true, lftp sends `SITE IDLE' command with net:idle argument. Default is false.

       ftp:use-site-utime (boolean)
              when true, lftp sends 5-argument `SITE UTIME' command to set file modification time
              on uploaded files. Default is true.

       ftp:use-site-utime2 (boolean)
              when true, lftp sends 2-argument `SITE UTIME' command to set file modification time
              on uploaded files. Default is true.  If 5-argument `SITE UTIME'  is  also  enabled,
              2-argument command is tried first.

       ftp:use-size (boolean)
              when true (default), lftp uses SIZE command to determine file size.

       ftp:use-stat (boolean)
              if  true,  lftp  sends  STAT command in FXP mode transfer to know how much data has
              been transferred. See also ftp:stat-interval. Default is true.

       ftp:use-stat-for-list (boolean)
              when true, lftp uses STAT instead of LIST command. By default `.' is used  as  STAT
              argument.  Using  STAT, lftp avoids creating data connection for directory listing.
              Some servers require special options for STAT, use ftp:list-options to specify them
              (e.g. -la).

       ftp:use-telnet-iac (boolean)
              when  true  (default),  lftp uses TELNET IAC command and follows TELNET protocol as
              specified in RFC959. When false, it does not follow TELNET protocol and  thus  does
              not  double  255  (0xFF, 0377) character and does not prefix ABOR and STAT commands
              with TELNET IP+SYNCH signal.

       ftp:use-tvfs (tri-boolean)
              When set to auto, usage of TVFS feature depends on  FEAT  server  reply.  Otherwise
              this  setting  tells  whether  use  it  or not. In short, if a server supports TVFS
              feature then it uses unix-like paths.

       ftp:use-utf8 (boolean)
              if true, lftp sends `OPTS UTF8 ON' to the server to  activate  UTF-8  encoding  (if
              supported).  Disable  it if the file names have a different encoding and the server
              has a trouble with it.

       ftp:use-quit (boolean)
              if true, lftp sends QUIT before disconnecting from ftp server. Default is true.

       ftp:verify-address (boolean)
              verify that data connection comes from the network address  of  control  connection
              peer.  This  can  possibly  prevent data connection spoofing which can lead to data
              corruption. Unfortunately, this can fail  for  certain  ftp  servers  with  several
              network  interfaces, when they do not set outgoing address on data socket, so it is
              disabled by default.

       ftp:verify-port (boolean)
              verify that data connection has port 20 (ftp-data) on its  remote  end.   This  can
              possibly  prevent  data connection spoofing by users of remote host. Unfortunately,
              too many windows and even unix ftp servers  forget  to  set  proper  port  on  data
              connection, thus this check is off by default.

       ftp:web-mode (boolean)
              disconnect after closing data connection. This can be useful for totally broken ftp
              servers. Default is false.

       ftps:initial-prot (string)
              specifies initial PROT setting for FTPS connections. Should be one of: C, S, E,  P,
              or  empty. Default is empty which means unknown, so that lftp will use PROT command
              unconditionally. If PROT command turns out to be unsupported, then Clear mode would
              be assumed.

       hftp:cache (boolean)
              allow server/proxy side caching for ftp-over-http protocol.

       hftp:cache-control (string)
              specify corresponding HTTP request header.

       hftp:decode (boolean)
              when  true,  lftp  automatically  decodes the entity in hftp protocol when Content-
              Encoding header value matches deflate, gzip, compress, x-gzip or x-compress.

       hftp:proxy (URL)
              specifies HTTP proxy for FTP-over-HTTP protocol (hftp). The  protocol  hftp  cannot
              work  without  a  HTTP  proxy,  obviously.  Default value is taken from environment
              variable ftp_proxy if  it  starts  with  ``http://'',  otherwise  from  environment
              variable  http_proxy.  If your FTP proxy requires authentication, specify user name
              and password in the URL.

       hftp:use-allprop (boolean)
              if true, lftp will send `<allprop/>' request body in `PROPFIND' requests, otherwise
              it will send an empty request body.

       hftp:use-authorization (boolean)
              if  set  to  off,  lftp will send password as part of URL to the proxy. This may be
              required for some proxies (e.g. M-soft). Default is on, and lftp will send password
              as part of Authorization header.

       hftp:use-head (boolean)
              if  set  to  off,  lftp  will try to use `GET' instead of `HEAD' for hftp protocol.
              While this is slower, it may allow lftp to  work  with  some  proxies  which  don't
              understand or mishandle ``HEAD ftp://'' requests.

       hftp:use-mkcol (boolean)
              if  set to off, lftp will try to use `PUT' instead of `MKCOL' to create directories
              with hftp protocol. Default is off.

       hftp:use-propfind (boolean)
              if set to off, lftp will not try to use `PROPFIND' to get directory  contents  with
              hftp  protocol  and use `GET' instead. Default is off. When enabled, lftp will also
              use PROPPATCH to set file modification time after uploading.

       hftp:use-range (boolean)
              when true, lftp will use Range header for transfer restart.

       hftp:use-type (boolean)
              If set to off, lftp won't try to append `;type=' to URLs  passed  to  proxy.   Some
              broken proxies don't handle it correctly. Default is on.

       http:accept, http:accept-charset, http:accept-encoding, http:accept-language (string)
              specify corresponding HTTP request headers.

       http:authorization (string)
              the  authorization  to  use  by  default,  when no user is specified. The format is
              ``user:password''. Default is empty which means no authorization.

       http:cache (boolean)
              allow server/proxy side caching.

       http:cache-control (string)
              specify corresponding HTTP request header.

       http:cookie (string)
              send this cookie to server. A closure is useful here:
                   set cookie/www.somehost.com "param=value"

       http:decode (boolean)
              when true, lftp automatically decodes the entity when Content-Encoding header value
              matches deflate, gzip, compress, x-gzip or x-compress.

       http:post-content-type (string)
              specifies  value  of  Content-Type HTTP request header for POST method.  Default is
              ``application/x-www-form-urlencoded''.

       http:proxy (URL)
              specifies HTTP proxy. It is used when lftp works over HTTP protocol.  Default value
              is   taken   from   environment   variable  http_proxy.   If  your  proxy  requires
              authentication, specify user name and password in the URL.

       http:put-method (PUT or POST)
              specifies which HTTP method to use on put.

       http:put-content-type (string)
              specifies value of Content-Type HTTP request header for PUT method.

       http:referer (string)
              specifies value for Referer HTTP request header. Single dot `.' expands to  current
              directory URL. Default is `.'. Set to empty string to disable Referer header.

       http:set-cookies (boolean)
              if true, lftp modifies http:cookie variables when Set-Cookie header is received.

       http:use-allprop (boolean)
              if true, lftp will send `<allprop/>' request body in `PROPFIND' requests, otherwise
              it will send an empty request body.

       http:use-mkcol (boolean)
              if set to off, lftp will try to use `PUT' instead of `MKCOL' to create  directories
              with HTTP protocol. Default is on.

       http:use-propfind (boolean)
              if  set  to off, lftp will not try to use `PROPFIND' to get directory contents with
              HTTP protocol and use `GET' instead. Default is off. When enabled, lftp  will  also
              use PROPPATCH to set `Last-Modified' property after a file upload.

       http:use-range (boolean)
              when true, lftp will use Range header for transfer restart.

       http:user-agent (string)
              the string lftp sends in User-Agent header of HTTP request.

       https:proxy (string)
              specifies   https   proxy.   Default  value  is  taken  from  environment  variable
              https_proxy.

       log:enabled (boolean)
              when true, the log messages are output. The  closure  for  this  and  other  `log:'
              variables is either `debug' for debug messages or `xfer' for transfer logging.

       log:file (string)
              the target output file for logging. When empty, stderr is used.

       log:level (number)
              the log verbosity level. Currently it's only defined for `debug' closure.

       log:max-size (number)
              maximum  size  of  the  log file. When the size is reached, the file is renamed and
              started anew.

       log:prefix-error (string)

       log:prefix-note (string)

       log:prefix-recv (string)

       log:prefix-send (string)
              the prefixes for corresponding types of debug messages.

       log:show-ctx (boolean)

       log:show-pid (boolean)

       log:show-time (boolean)
              select additional information in the log messages.

       mirror:dereference (boolean)
              when true, mirror will dereference symbolic links by default.  You can override  it
              by --no-dereference option. Default if false.

       mirror:exclude-regex (regex)
              specifies default exclusion pattern. You can override it by --include option.

       mirror:include-regex (regex)
              specifies  default inclusion pattern. It is used just after mirror:exclude-regex is
              applied. It is never used if mirror:exclude-regex is empty.

       mirror:no-empty-dirs (boolean)
              when true, mirror doesn't create empty directories (like --no-empty-dirs option).

       mirror:sort-by (string)
              specifies order of file transfers. Valid values are: name, name-desc,  size,  size-
              desc,  date,  date-desc.  When  the  value  is name or name-desc, then mirror:order
              setting also affects the order or transfers.

       mirror:order (list of patterns)
              specifies order of file transfers when sorting by name. E.g. setting this to "*.sfv
              *.sum"  makes  mirror  to  transfer  files matching *.sfv first, then ones matching
              *.sum and then all other files. To process directories after other files, add  "*/"
              to the end of pattern list.

       mirror:overwrite (boolean)
              when  true,  mirror  will overwrite plain files instead of removing and re-creating
              them.

       mirror:parallel-directories (boolean)
              if true, mirror will start processing of several directories in parallel when it is
              in  parallel mode. Otherwise, it will transfer files from a single directory before
              moving to other directories.

       mirror:parallel-transfer-count (number)
              specifies number of parallel  transfers  mirror  is  allowed  to  start.   You  can
              override  it  with  --parallel  option.  A closure can be matched against source or
              target host names, the minimum number greater than 0 is used.

       mirror:require-source (boolean)
              When true, mirror requires a source directory to be specified explicitly, otherwise
              it is supposed to be the current directory.

       mirror:set-permissions (boolean)
              When  set to off, mirror won't try to copy file and directory permissions.  You can
              override it by --perms option. Default is on.

       mirror:skip-noaccess (boolean)
              when true, mirror does not try to download files which are  obviously  inaccessible
              by the permission mask. Default is false.

       mirror:use-pget-n (number)
              specifies  -n  option  for  pget  command  used to transfer every single file under
              mirror.  A closure can be matched against source or target host names, the  minimum
              number greater than 0 is used.  When the value is less than 2, pget is not used.

       module:path (string)
              colon  separated  list  of  directories  to look for modules. Can be initialized by
              environment variable LFTP_MODULE_PATH. Default is `PKGLIBDIR/VERSION:PKGLIBDIR'.

       net:connection-limit (number)
              maximum number of concurrent connections to the same site. 0 means unlimited.

       net:connection-limit-timer (time interval)
              increase the dynamic connection limit after this time interval.

       net:connection-takeover (boolean)
              if true,  foreground  connections  have  priority  over  background  ones  and  can
              interrupt background transfers to complete a foreground operation.

       net:idle (time interval)
              disconnect from server after this idle time. Default is 3 minutes.

       net:limit-rate (bytes per second)
              limit  transfer  rate  on  data  connection. 0 means unlimited. You can specify two
              numbers separated by colon to limit download and upload rate separately.   Suffixes
              are supported, e.g. 100K means 102400.

       net:limit-max (bytes)
              limit accumulating of unused limit-rate. 0 means twice of limit-rate.

       net:limit-total-rate (bytes per second)
              limit  transfer  rate of all connections in sum. 0 means unlimited. You can specify
              two numbers separated by colon to limit download and upload rate separately.   Note
              that  sockets  have  receive  buffers  on  them, this can lead to network link load
              higher than this rate limit just after transfer  beginning.  You  can  try  to  set
              net:socket-buffer to relatively small value to avoid this.

       If  you specify a closure, then rate limitation will be applied to sum of connections to a
       single matching host.

       net:limit-total-max (bytes)
              limit accumulating of unused limit-total-rate. 0 means twice of limit-total-rate.

       net:max-retries (number)
              the maximum number of sequential tries of an operation without  success.   0  means
              unlimited. 1 means no retries.

       net:no-proxy (string)
              contains  comma  separated  list  of  domains  for  which proxy should not be used.
              Default is taken from environment variable no_proxy.

       net:persist-retries (number)
              ignore this number of hard errors. Useful to login to buggy FTP servers which reply
              5xx when there is too many users.

       net:reconnect-interval-base (seconds)
              sets  the  base  minimal  time  between  reconnects.  Actual  interval  depends  on
              net:reconnect-interval-multiplier and number of attempts to perform an operation.

       net:reconnect-interval-max (seconds)
              sets maximum reconnect interval. When  current  interval  after  multiplication  by
              net:reconnect-interval-multiplier  reaches  this value (or exceeds it), it is reset
              back to net:reconnect-interval-base.

       net:reconnect-interval-multiplier (real number)
              sets multiplier by which base interval is  multiplied  each  time  new  attempt  to
              perform  an operation fails. When the interval reaches maximum, it is reset to base
              value. See net:reconnect-interval-base and net:reconnect-interval-max.

       net:socket-bind-ipv4 (ipv4 address)
              bind all IPv4 sockets to specified address. This can be useful to select a specific
              network  interface  to  use. Default is empty which means not to bind IPv4 sockets,
              operating system will choose an address automatically using routing table.

       net:socket-bind-ipv6 (ipv6 address)
              the same for IPv6 sockets.

       net:socket-buffer (bytes)
              use given size for SO_SNDBUF and SO_RCVBUF socket options. 0 means system default.

       net:socket-maxseg (bytes)
              use given size for TCP_MAXSEG socket option. Not all operating systems support this
              option, but Linux does.

       net:timeout (time interval)
              sets the network protocol timeout.

       pget:default-n (number)
              default number of chunks to split the file to in pget.

       pget:min-chunk-size (number)
              minimal chunk size to split the file to.

       pget:save-status (time interval)
              save  pget  transfer  status  this  often.  Set to `never' to disable saving of the
              status file.  The status is saved to a file with suffix .lftp-pget-status.

       sftp:auto-confirm (boolean)
              when true, lftp answers ``yes'' to all ssh questions, in particular to the question
              about a new host key. Otherwise it answers ``no''.

       sftp:charset (string)
              the  character set used by SFTP server in file names and file listings.  Default is
              empty which means the same as local. This setting is only used  for  SFTP  protocol
              version prior to 4. Version 4 and later always use UTF-8.

       sftp:connect-program (string)
              the  program  to use for connecting to remote server. It should support `-l' option
              for user name, `-p' for port number. Default is  `ssh  -a  -x'.   For  private  key
              authentication add `-i' option with the key file.

       sftp:max-packets-in-flight (number)
              The  maximum  number  of  unreplied  packets  in  flight.  If  round  trip  time is
              significant, you should increase this and size-read/size-write. Default is 16.

       sftp:protocol-version (number)
              The protocol number to negotiate. Default is 6. The actual  protocol  version  used
              depends on the server.

       sftp:server-program (string)
              The  server program implementing SFTP protocol. If it does not contain a slash `/',
              it is considered a ssh2 subsystem and -s option  is  used  when  starting  connect-
              program.  Default is `sftp'. You can use rsh as transport level protocol like this:
                   set sftp:connect-program rsh
                   set sftp:server-program /usr/libexec/openssh/sftp-server
              Similarly you can run SFTP over SSH1.

       sftp:size-read (number)
              Block size for reading. Default is 0x8000.

       sftp:size-write (number)
              Block size for writing. Default is 0x8000.

       ssl:ca-file (path to file)
              use specified file as Certificate Authority certificate.

       ssl:ca-path (path to directory)
              use  specified  directory  as Certificate Authority certificate repository (OpenSSL
              only).

       ssl:check-hostname (boolean)
              when true, lftp checks if the host name used to connect to the  server  corresponds
              to the host name in its certificate.

       ssl:crl-file (path to file)
              use specified file as Certificate Revocation List certificate.

       ssl:crl-path (path to directory)
              use  specified  directory  as  Certificate  Revocation  List certificate repository
              (OpenSSL only).

       ssl:key-file (path to file)
              use specified file as your private key. This setting is  only  used  for  ftps  and
              https   protocols.  For  sftp  and  fish  protocols  use  sftp:connect-program  and
              fish:connect-program respectively (add `-i' option to ssh).

       ssl:cert-file (path to file)
              use specified file as your certificate.

       ssl:use-sni (boolean)
              when true, use Server Name Indication (SNI) TLS extension.

       ssl:verify-certificate (boolean)
              if set to yes, then verify server's certificate to be signed by a known Certificate
              Authority  and  not  be on Certificate Revocation List. You can specify either host
              name or certificate fingerprint in the closure.

       ssl:priority (string)
              free form priority string for GnuTLS. If built with OpenSSL the  understood  values
              are + or - followed by SSL3.0, TLS1.0, TLS1.1 or TLS1.2, separated by :. Example:
                   set ssl:priority "NORMAL:-SSL3.0:-TLS1.0:-TLS1.1:+TLS1.2"

       torrent:ip (ipv4 address)
              IP address to send to the tracker. Specify it if you are using an HTTP proxy.

       torrent:ipv6 (ipv6 address)
              IPv6 address to send to the tracker. By default, first found global unicast address
              is used.

       torrent:max-peers (number)
              maximum number of peers for a torrent. Least used peers  are  removed  to  maintain
              this limit.

       torrent:port-range (from-to)
              port  range  to  accept  connections  on.  A single port is selected when a torrent
              starts.

       torrent:retracker (URL)
              explicit retracker URL, e.g. `http://retracker.local/announce'.

       torrent:save-metadata (boolean)
              when  true,  lftp   saves   metadata   of   each   torrent   it   works   with   to
              ~/.local/share/lftp/torrent/md  or  ~/.lftp/torrent/md  directory and loads it from
              there if necessary.

       torrent:seed-max-time (time interval)
              maximum seed time. After  this  period  of  time  a  complete  torrent  shuts  down
              independently of ratio. It can be set to infinity if needed.

       torrent:seed-min-peers (number)
              minimum  number of peers when the torrent is complete. If there are less, new peers
              are actively searched for.

       torrent:stop-min-ppr (real number)
              minimum per-piece-ratio to stop seeding. Use it to avoid a situation when a popular
              piece causes quick raise of the total ratio.

       torrent:stop-on-ratio (real number)
              torrent stops when it's complete and ratio reached this number.

       torrent:timeout (time interval)
              maximum time without any progress. When it's reached, the torrent shuts down.

       torrent:use-dht (boolean)
              when true, DHT is used.

       xfer:auto-rename(boolean)
              suggested  filenames  provided  by the server are used if user explicitly sets this
              option to `on'. As this could be security risk, default is off.

       xfer:backup-suffix (string)
              a time format string (see strftime(3)) for  backup  file  name  when  replacing  an
              existing file.

       xfer:clobber (boolean)
              if this setting is off, get commands will not overwrite existing files and generate
              an error instead.

       xfer:destination-directory (path or URL to directory)
              This setting is used as default -O option for get and mget  commands.   Default  is
              empty, which means current directory (no -O option).

       xfer:disk-full-fatal (boolean)
              when  true,  lftp  aborts a transfer if it cannot write target file because of full
              disk or quota; when false, lftp waits for disk space to be freed.

       xfer:eta-period (seconds)
              the period over which weighted average rate is calculated to produce ETA.

       xfer:eta-terse (boolean)
              show terse ETA (only high order parts). Default is true.

       xfer:keep-backup (boolean)
              when true, the backup file created before replacing an existing file is not removed
              after successful transfer.

       xfer:make-backup (boolean)
              when  true,  lftp  renames  pre-existing  file adding xfer:backup-suffix instead of
              overwriting it.

       xfer:max-redirections (number)
              maximum number of redirections. This can be useful for downloading  over  HTTP.   0
              prohibits redirections.

       xfer:parallel (number)
              the default number of parallel transfers in a single get/put/mget/mput command.

       xfer:rate-period (seconds)
              the period over which weighted average rate is calculated to be shown.

       xfer:temp-file-name (string)
              temporary file name pattern, first asterisk is replaced by the original file name.

       xfer:timeout (time interval)
              maximum time without any transfer progress. It can be used to limit maximum time to
              retry a transfer from a server not supporting transfer restart.

       xfer:use-temp-file (boolean)
              when true, a file will be transferred to a temporary file in the same directory and
              then renamed.

       xfer:verify (boolean)
              when  true,  verify-command  is launched after successful transfer to validate file
              integrity. Zero exit code of that command should indicate correctness of the file.

       xfer:verify-command (string)
              the command to validate file integrity. The only argument is the path to the file.

       The name of a variable can be abbreviated unless it becomes ambiguous. The  prefix  before
       `:' can be omitted too. You can set one variable several times for different closures, and
       thus you can get a particular  settings  for  particular  state.  The  closure  is  to  be
       specified after variable name separated with slash `/'.

       The  closure  for  `dns:',  `net:', `ftp:', `http:', `hftp:' domain variables is currently
       just the host name as you specify it in the `open' command  (with  some  exceptions  where
       closure  is  meaningless,  e.g.  dns:cache-size).   For  some  `cmd:' domain variables the
       closure is current URL without path.  For `log:' domain variables the  closure  is  either
       `debug'  or  `xfer'.   For  other  variables it is not currently used. See examples in the
       sample lftp.conf.

       Certain commands and settings take a time interval parameter. It has the format Nx[Nx...],
       where  N  is  time  amount  (floating  point) and x is time unit: d - days, h - hours, m -
       minutes, s - seconds. Default unit is second. E.g. 5h30m or 5.5h.  Also the  interval  can
       be  `infinity',  `inf',  `never',  `forever'  -  it  means  infinite interval. E.g. `sleep
       forever' or `set dns:cache-expire never'.

       Boolean settings can be one of (true, on, yes, 1, +) for a True value or  one  of  (false,
       off, no, 0, -) for a False value.

       Tri-boolean settings have either a boolean value or `auto'.

       Integer settings can have a suffix: k - kibi, m - mebi, g - gigi, etc.  They can also have
       a prefix: 0 - octal, 0x - hexadecimal.

   FTP asynchronous mode (pipelining)
       Lftp can speed up FTP operations by sending several commands at once and then checking all
       the  responses. See ftp:sync-mode variable. Sometimes this does not work, thus synchronous
       mode is the default. You can try to turn synchronous mode off and see if it works for you.
       It  is known that some network software dealing with address translation works incorrectly
       in the case of several FTP commands in one network packet.

       RFC959 says: ``The user-process sending another command before the completion reply  would
       be  in  violation  of  protocol;  but  server-FTP processes should queue any commands that
       arrive while a preceding command is in progress''. Also, RFC1123 says: ``Implementors MUST
       NOT  assume  any  correspondence between READ boundaries on the control connection and the
       Telnet EOL sequences (CR LF).'' and ``a  single  READ  from  the  control  connection  may
       include more than one FTP command''.

       So  it  must be safe to send several commands at once, which speeds up operation a lot and
       seems to work with all Unix and  VMS  based  ftp  servers.  Unfortunately,  windows  based
       servers  often  cannot  handle  several  commands in one packet, and so cannot some broken
       routers.

OPTIONS

       -d     Switch on debugging mode.

       -e commands
              Execute given commands and don't exit.

       -p port
              Use the given port to connect.

       -u user[,pass]
              Use the given username and password to connect.  Remember  to  quote  the  password
              properly  in  the shell. Also note that it is not secure to specify the password on
              command line, use ~/.netrc file or LFTP_PASSWORD environment variable together with
              --env-password   option.   Alternatively  you  can  use  ssh-based  protocols  with
              authorized keys, so you don't have to enter a password.

       --norc Don't execute rc files from the home directory.

       --rcfile file
              Execute commands from the file. May be specified multiple times.

       -f script_file
              Execute commands in the file and exit.  This option  must  be  used  alone  without
              other arguments (except --norc).

       -c commands
              Execute  the  given  commands and exit. Commands can be separated with a semicolon,
              `&&' or `||'. Remember to quote the commands argument properly in the shell.   This
              option must be used alone without other arguments (except --norc).

       Other open options may also be given on the lftp command line.

ENVIRONMENT VARIABLES

       The following environment variables are processed by lftp:

       EDITOR Used as local editor for the edit command.

       HOME   Used for (local) tilde (`~') expansion.

       SHELL  Used by the ! command to determine the shell to run.

       PAGER  This  should  be  the  name  of  the pager to use.  It's used by the more and zmore
              commands.

       http_proxy, https_proxy
              Used to set initial http:proxy, hftp:proxy and https:proxy variables.

       ftp_proxy
              Used to set initial ftp:proxy or hftp:proxy variables, depending  on  URL  protocol
              used in this environment variable.

       no_proxy
              Used to set initial net:no-proxy variable.

       LFTP_MODULE_PATH
              Used to set initial module:path variable.

       LFTP_HOME
              Used  to  locate  the  directory  that stores user-specific configuration files. If
              unset, ~/.lftp will be used. Please note that if this  directory  does  not  exist,
              then XDG directories will be used.

       LFTP_PASSWORD
              Used for --env-password open option.

       LS_COLORS
              used to set initial color:dir-colors variable.

       XDG_CONFIG_HOME, XDG_DATA_HOME, XDG_CACHE_HOME
              Used  to locate the directories for user-specific files when ~/.lftp (or $LFTP_HOME
              directory) does not exist. Defaults  are  ~/.config,  ~/.local/share  and  ~/.cache
              respectively.  The  suffix  /lftp  is  appended  to  make  the  full  path  to  the
              directories.

FILES

       /etc/lftp.conf
              system-wide startup file. Actual location depends on --sysconfdir configure option.
              It is /etc when prefix is /usr, /usr/local/etc by default.

       ~/.config/lftp/rc or ~/.lftp/rc, ~/.lftprc
              These files are executed on lftp startup after /etc/lftp.conf.

       ~/.local/share/lftp/log or ~/.lftp/log
              The file things are logged to when lftp moves into the background in nohup mode.

       ~/.local/share/lftp/transfer_log or ~/.lftp/transfer_log
              The  file  transfers  are  logged to when log:enabled/xfer setting is set to `yes'.
              The location can be changed by log:file/xfer setting.

       ~/.local/share/lftp/bookmarks or ~/.lftp/bookmarks
              The file is used to store lftp's bookmarks.  See the bookmark command.

       ~/.local/share/lftp/cwd_history or ~/.lftp/cwd_history
              The file is used to store last working directories for each site visited.

       ~/.local/share/lftp/bg/ or ~/.lftp/bg/
              The directory is used to store named sockets for backgrounded lftp processes.

       ~/.cache/lftp/DHT/ or ~/.lftp/DHT/"
              The directory is used to store DHT id and nodes cache for IPv4 and IPv6.  File name
              suffix is the host name.

       ~/.cache/lftp/edit/ or ~/.lftp/edit/"
              The directory is used to store temporary files for edit command.

       ~/.local/share/lftp/torrent/md/ or ~/.lftp/torrent/md/"
              The directory is used to store torrent metadata. It is especially useful for magnet
              links, cached metadata can be loaded from the directory.   It  can  also  serve  as
              torrent history, file names are the info_hash of torrents.

       ~/.netrc
              The  file  is  consulted  to  get default login and password to a server when it is
              specified without a protocol to the `open' command.  Passwords  are  also  searched
              here if an URL with user name but with no password is used.

SEE ALSO

       ftpd(8), ftp(1)
       RFC854 (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0), RFC2052 (SRV RR), RFC2228 (ftp
       security extensions), RFC2389 (ftp FEAT), RFC2428 (ftp/ipv6),  RFC2518  (WebDAV),  RFC2616
       (http/1.1),   RFC2617   (http/1.1   authentication),  RFC2640  (ftp  i18n),  RFC3659  (ftp
       extensions),  RFC4217  (ftp  over  ssl),  BEP0003  (BitTorrent  Protocol),  BEP0005   (DHT
       Protocol),  BEP0006 (Fast Extension), BEP0007 (IPv6 Tracker Extension), BEP0009 (Extension
       for Peers to Send Metadata Files), BEP0010  (Extension  Protocol),  BEP0012  (Multitracker
       Metadata Extension), BEP0023 (Tracker Returns Compact Peer Lists), BEP0032 (DHT Extensions
       for IPv6).
       https://tools.ietf.org/html/draft-preston-ftpext-deflate-04 (ftp deflate transmission
       mode),
       https://tools.ietf.org/html/draft-ietf-secsh-filexfer-13 (sftp).
       http://wiki.theory.org/BitTorrentSpecification
       http://www.bittornado.com/docs/multitracker-spec.txt
       http://www.rasterbar.com/products/libtorrent/dht_sec.html (DHT security extension)
       http://xbtt.sourceforge.net/udp_tracker_protocol.html (UDP tracker)

AUTHOR

       Alexander V. Lukyanov
       lav@yars.free.net

ACKNOWLEDGMENTS

       This  manual  page  was originally written by Christoph Lameter <clameter@debian.org>, for
       the Debian GNU/Linux system. The page was improved and updated later by Nicolas Lichtmaier
       <nick@Feedback.com.ar>,  James Troup <J.J.Troup@comp.brad.ac.uk> and Alexander V. Lukyanov
       <lav@yars.free.net>.

                                           10 Aug 2017                                    lftp(1)