Provided by: lftp_4.3.3-1_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 4.3.3.

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  not  fatal  error  is  ignored  and  the
       operation  is  repeated.  So  if  downloading  breaks, it will be restarted from the point
       automatically. Even if ftp server does not support 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 when some jobs are not finished yet, lftp will move itself to nohup mode
       in background. The same happens when you have 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. 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), then  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.

            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.  See `help cls' for options.

       command cmd args...

       execute given command ignoring aliases.

       debug [-o file] level|off

       Switch debugging to level or turn it off.  Use -o to redirect the debug output to a file.

       echo [-n] string

       guess what it does.

       eval [-f format ] args...

       without -f it just  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] [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 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  [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.

       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 [-d] [-a] [-f] command patterns

       Glob  given  patterns  containing  metacharacters  and pass result to given command.  E.g.
       ``glob echo *''.

            -f   plain files (default)
            -d   directories
            -a   all types

       help [cmd]

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

       jobs [-v]

       List running jobs. -v means verbose, several -v can be specified.

       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 target directory ends with
       a slash, 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
            -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)
                   --no-empty-dirs           don't    create    empty    directories     (implies
                                             --depth-first)
            -r,    --no-recursion            don't go to subdirectories
                   --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
            -N,    --newer-than=SPEC         download only files newer than specified time
                   --on-change=CMD           execute the command if anything has been changed
                   --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
                   --loop                    loop 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
            -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=-
                   --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  first  directory  is local and the second is remote.  If the second
       directory is omitted, base name of first directory  is  used.   If  both  directories  are
       omitted,  current  local and remote directories are used.  If target directory ends with a
       slash (except root directory) then base name of 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 option --newer-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.

       You  can  mirror  between  two servers if you specify URLs instead of directories.  FXP is
       used automatically 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] dir(s)

       Make remote directories. If -p is used, make all components of paths.

       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 an 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  or  URL.
       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 outs.

       Options:

            -O <directory>   specifies base directory where files should be placed
            --force-valid    skip file validation (if you are sure they are ok).

       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 termination.

       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.  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 ~/.lftp/bookmarks on `bookmark add' command.  Off by
              default.

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

       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 an unconditional (without || and && at begin) command fails.

       cmd:interactive (boolean)
              when true, lftp acts interactively, handles terminal signals and outputs some extra
              messages. Default 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:save-cwd-history (boolean)
              when  true, lftp saves last CWD of each site to ~/.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 ~/.lftp/rl_history on exit.   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).

       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:remote-completion (boolean)
              a boolean to control whether or not lftp uses remote completion.

       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.

       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: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 an 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-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: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-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: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-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-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: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-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:order (list of patterns)
              specifies  order of file transfers. 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 end of pattern list.

       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: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 unaccessible
              by the permission mask. Defaule 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.

       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 retries of an operation without success.  0  means
              unlimited.

       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  reachs  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 reachs 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: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: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: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.

       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: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.

       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 (boolean)
              the file to log transfers to. Default is ~/.lftp/transfer_log.

       xfer:make-backup (boolean)
              when  true,  lftp  renames  pre-existing  file  adding  ``~''  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:rate-period (seconds)
              the period over which weighted average rate is calculated to be shown.

       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.

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

       -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.

ENVIRONMENT VARIABLES

       The following environment variables are processed by lftp:

       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.

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

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.

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

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

       ~/.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.

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

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

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

       ~/.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).
       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

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>.

                                           19 Oct 2011                                    lftp(1)