xenial (1) lftp.1.gz

Provided by: lftp_4.6.3a-1ubuntu0.1_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 4.6.3.

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 mode files

       Change permission mask on remote files. The mode must be an octal number.

       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:

            -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,    --list           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] [-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)
            -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)
            --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] [-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
            -a          use ascii mode (binary is the default)
            -O <base>   specifies base directory or URL where files should be placed

       mirror [OPTS] [source [target]]

       Mirror  specified  source  directory to local target directory. If the target directory ends with a slash
       (except the root), the source base name is appended to target directory name. Source and/or target can be
       URLs pointing to directories.

            -c,      --continue                continue a mirror job if possible
            -e,      --delete                  delete files not present at remote site
                     --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 remote site
                     --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 remote ones
                     --no-empty-dirs           don't create empty directories (implies --depth-first)
            -r,      --no-recursion            don't go to subdirectories
            -r,      --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
            -f FILE, --file=FILE               mirror a single file or globbed group (e.g. /path/to/*.txt)
            -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 files after transfer (use with caution)
            -a                                 same as --allow-chown --allow-suid --no-umask

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

       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.

       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'.

       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] [-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)
            -a          use ascii mode (binary is the default)
            -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.

       mv file1 file2

       Rename file1 to file2.

       nlist [args]

       List remote file names

       open [-e cmd] [-u user[,pass]] [-p port] host|url

       Select a FTP server.

       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] [-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)
            -a           use ascii mode (binary is the default)
            -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  reachs
       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 current user is not default
              \a     an ASCII bell character (07)
              \e     an ASCII escape character (033)
              \h     the hostname you are connected to
              \n     newline
              \s     the name of the client (lftp)
              \S     current slot name
              \u     the username of the 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
              \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 (booleam)
              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.

       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.

       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.

       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: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: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 active mode.  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: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-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.

       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 on.

       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.

       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. Default is 1.  You can override
              it with --parallel option.

       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. Default is 1
              which disables pget.

       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-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.

       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'. You can set it to `rsh', for example.

       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  4. The actual protocol version used depends on
              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.

       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.

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

       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: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:log (boolean)
              when true, lftp logs transfers to a file from xfer:log-file setting.

       xfer:log-file (path to file)
              the file to log transfers to. Default is ~/.local/share/lftp/transfer_log or ~/.lftp/transfer_log.

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

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

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

       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: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  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.  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.

       -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).

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.

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

       XDG_CONFIG_DIR, XDG_DATA_DIR, XDG_CACHE_DIR
              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 xfer:log setting is set to `yes'.  The location can be
              changed by xfer:log-file 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 FTP server.  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), 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).
       http://www.ietf.org/internet-drafts/draft-ietf-ftpext-mlst-16.txt (ftp extensions over RFC959),
       http://www.ietf.org/internet-drafts/draft-ietf-secsh-filexfer-10.txt (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>.

                                                   16 Jun 2015                                           lftp(1)