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Damien Miller86a39682004-01-21 11:00:04 +11001.\" $OpenBSD: sftp.1,v 1.51 2004/01/13 12:17:33 jmc Exp $
Damien Miller33804262001-02-04 23:20:18 +11002.\"
Ben Lindstrom92a2e382001-03-05 06:59:27 +00003.\" Copyright (c) 2001 Damien Miller. All rights reserved.
Damien Miller33804262001-02-04 23:20:18 +11004.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright
9.\" notice, this list of conditions and the following disclaimer.
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13.\"
14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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24.\"
Ben Lindstrom8ffeacf2001-04-10 02:43:57 +000025.Dd February 4, 2001
Damien Miller33804262001-02-04 23:20:18 +110026.Dt SFTP 1
27.Os
28.Sh NAME
29.Nm sftp
Damien Miller50677922003-05-23 18:44:04 +100030.Nd secure file transfer program
Damien Miller33804262001-02-04 23:20:18 +110031.Sh SYNOPSIS
Damien Millerd6ead282003-05-14 19:30:38 +100032.Nm sftp
Damien Miller495dca32003-04-01 21:42:14 +100033.Bk -words
Darren Tucker1f203942003-10-15 15:50:42 +100034.Op Fl 1Cv
Damien Miller81b6e782002-02-08 22:06:03 +110035.Op Fl B Ar buffer_size
Darren Tucker1f203942003-10-15 15:50:42 +100036.Op Fl b Ar batchfile
Damien Miller81b6e782002-02-08 22:06:03 +110037.Op Fl F Ar ssh_config
Darren Tucker1f203942003-10-15 15:50:42 +100038.Op Fl o Ar ssh_option
39.Op Fl P Ar sftp_server_path
Damien Miller16a13332002-02-13 14:03:56 +110040.Op Fl R Ar num_requests
Ben Lindstrom6a337632001-09-18 05:47:32 +000041.Op Fl S Ar program
Darren Tucker1f203942003-10-15 15:50:42 +100042.Op Fl s Ar subsystem | sftp_server
Ben Lindstrom6a337632001-09-18 05:47:32 +000043.Ar host
Damien Miller495dca32003-04-01 21:42:14 +100044.Ek
Damien Millerd6ead282003-05-14 19:30:38 +100045.Nm sftp
Damien Millerc2b98272003-09-03 12:13:30 +100046.Oo Oo Ar user Ns @ Oc Ns
Damien Miller495dca32003-04-01 21:42:14 +100047.Ar host Ns Oo : Ns Ar file Oo
48.Ar file Oc Oc Oc
Damien Millerd6ead282003-05-14 19:30:38 +100049.Nm sftp
Damien Millerc2b98272003-09-03 12:13:30 +100050.Oo Oo Ar user Ns @ Oc Ns
Damien Miller495dca32003-04-01 21:42:14 +100051.Ar host Ns Oo : Ns Ar dir Ns
52.Oo Ar / Oc Oc Oc
Damien Millerd6ead282003-05-14 19:30:38 +100053.Nm sftp
Damien Millerfb7508e2003-05-14 13:47:07 +100054.Fl b Ar batchfile
Damien Millerc2b98272003-09-03 12:13:30 +100055.Oo Ar user Ns @ Oc Ns Ar host
Damien Miller33804262001-02-04 23:20:18 +110056.Sh DESCRIPTION
57.Nm
58is an interactive file transfer program, similar to
59.Xr ftp 1 ,
60which performs all operations over an encrypted
61.Xr ssh 1
62transport.
63It may also use many features of ssh, such as public key authentication and
64compression.
65.Nm
66connects and logs into the specified
Ben Lindstromaafff9c2001-05-06 03:01:02 +000067.Ar host ,
Damien Miller33804262001-02-04 23:20:18 +110068then enters an interactive command mode.
69.Pp
Ben Lindstrom24643222001-06-25 05:08:11 +000070The second usage format will retrieve files automatically if a non-interactive
Ben Lindstromaafff9c2001-05-06 03:01:02 +000071authentication method is used; otherwise it will do so after
72successful interactive authentication.
Ben Lindstrom63667f62001-04-13 00:00:14 +000073.Pp
Damien Millerfb7508e2003-05-14 13:47:07 +100074The third usage format allows the sftp client to start in a remote directory.
Ben Lindstrom63667f62001-04-13 00:00:14 +000075.Pp
Damien Miller50677922003-05-23 18:44:04 +100076The final usage format allows for automated sessions using the
Damien Millerfb7508e2003-05-14 13:47:07 +100077.Fl b
Damien Miller50677922003-05-23 18:44:04 +100078option.
79In such cases, it is usually necessary to configure public key authentication
80to obviate the need to enter a password at connection time (see
Damien Millerfb7508e2003-05-14 13:47:07 +100081.Xr sshd 8
Damien Millerd6ead282003-05-14 19:30:38 +100082and
Damien Millerfb7508e2003-05-14 13:47:07 +100083.Xr ssh-keygen 1
Damien Miller50677922003-05-23 18:44:04 +100084for details).
Damien Miller33804262001-02-04 23:20:18 +110085The options are as follows:
86.Bl -tag -width Ds
Darren Tucker1f203942003-10-15 15:50:42 +100087.It Fl 1
88Specify the use of protocol version 1.
89.It Fl B Ar buffer_size
90Specify the size of the buffer that
91.Nm
92uses when transferring files.
93Larger buffers require fewer round trips at the cost of higher
94memory consumption.
95The default is 32768 bytes.
Ben Lindstrom562c26b2001-03-07 01:26:48 +000096.It Fl b Ar batchfile
97Batch mode reads a series of commands from an input
Ben Lindstrom283cb822001-03-09 00:09:02 +000098.Ar batchfile
Ben Lindstrom562c26b2001-03-07 01:26:48 +000099instead of
Ben Lindstrom283cb822001-03-09 00:09:02 +0000100.Em stdin .
101Since it lacks user interaction it should be used in conjunction with
Damien Miller86a39682004-01-21 11:00:04 +1100102non-interactive authentication.
Damien Miller44f75c12004-01-21 10:58:47 +1100103A
Damien Miller86a39682004-01-21 11:00:04 +1100104.Ar batchfile
105of
106.Sq \-
Damien Miller44f75c12004-01-21 10:58:47 +1100107may be used to indicate standard input.
Ben Lindstrom283cb822001-03-09 00:09:02 +0000108.Nm
Ben Lindstrom24643222001-06-25 05:08:11 +0000109will abort if any of the following
110commands fail:
Ben Lindstrom3612bda2002-03-05 01:26:38 +0000111.Ic get , put , rename , ln ,
Damien Miller495dca32003-04-01 21:42:14 +1000112.Ic rm , mkdir , chdir , ls ,
Damien Miller956f3fb2003-01-10 21:40:00 +1100113.Ic lchdir , chmod , chown , chgrp , lpwd
Ben Lindstrom562c26b2001-03-07 01:26:48 +0000114and
Ben Lindstrom283cb822001-03-09 00:09:02 +0000115.Ic lmkdir .
Damien Miller495dca32003-04-01 21:42:14 +1000116Termination on error can be suppressed on a command by command basis by
117prefixing the command with a
Damien Miller86a39682004-01-21 11:00:04 +1100118.Sq \-
Damien Miller50677922003-05-23 18:44:04 +1000119character (for example,
120.Ic -rm /tmp/blah* ) .
Darren Tucker1f203942003-10-15 15:50:42 +1000121.It Fl C
122Enables compression (via ssh's
123.Fl C
124flag).
125.It Fl F Ar ssh_config
126Specifies an alternative
127per-user configuration file for
128.Xr ssh 1 .
129This option is directly passed to
130.Xr ssh 1 .
Damien Miller33804262001-02-04 23:20:18 +1100131.It Fl o Ar ssh_option
Ben Lindstrom14c62eb2001-08-15 23:25:46 +0000132Can be used to pass options to
133.Nm ssh
Ben Lindstrom3072aae2002-06-21 01:02:39 +0000134in the format used in
135.Xr ssh_config 5 .
136This is useful for specifying options
Ben Lindstrom14c62eb2001-08-15 23:25:46 +0000137for which there is no separate
138.Nm sftp
Damien Miller50677922003-05-23 18:44:04 +1000139command-line flag.
140For example, to specify an alternate port use:
Ben Lindstrom6a337632001-09-18 05:47:32 +0000141.Ic sftp -oPort=24 .
Darren Tucker1f203942003-10-15 15:50:42 +1000142For full details of the options listed below, and their possible values, see
143.Xr ssh_config 5 .
144.Pp
145.Bl -tag -width Ds -offset indent -compact
146.It AddressFamily
147.It BatchMode
148.It BindAddress
149.It ChallengeResponseAuthentication
150.It CheckHostIP
151.It Cipher
152.It Ciphers
Darren Tucker1f203942003-10-15 15:50:42 +1000153.It Compression
154.It CompressionLevel
155.It ConnectionAttempts
156.It ConnectionTimeout
Darren Tucker1f203942003-10-15 15:50:42 +1000157.It GlobalKnownHostsFile
158.It GSSAPIAuthentication
159.It GSSAPIDelegateCredentials
160.It Host
161.It HostbasedAuthentication
162.It HostKeyAlgorithms
163.It HostKeyAlias
164.It HostName
165.It IdentityFile
Darren Tucker1f203942003-10-15 15:50:42 +1000166.It LogLevel
167.It MACs
168.It NoHostAuthenticationForLocalhost
169.It NumberOfPasswordPrompts
170.It PasswordAuthentication
171.It Port
172.It PreferredAuthentications
173.It Protocol
174.It ProxyCommand
175.It PubkeyAuthentication
Darren Tucker1f203942003-10-15 15:50:42 +1000176.It RhostsRSAAuthentication
177.It RSAAuthentication
Damien Miller509b0102003-12-17 16:33:10 +1100178.It ServerAliveInterval
179.It ServerAliveCountMax
Darren Tucker1f203942003-10-15 15:50:42 +1000180.It SmartcardDevice
181.It StrictHostKeyChecking
Damien Miller12c150e2003-12-17 16:31:10 +1100182.It TCPKeepAlive
Darren Tucker1f203942003-10-15 15:50:42 +1000183.It UsePrivilegedPort
184.It User
185.It UserKnownHostsFile
186.It VerifyHostKeyDNS
Darren Tucker1f203942003-10-15 15:50:42 +1000187.El
188.It Fl P Ar sftp_server_path
Damien Miller50677922003-05-23 18:44:04 +1000189Connect directly to a local sftp server
Damien Miller81b6e782002-02-08 22:06:03 +1100190(rather than via
Damien Miller50677922003-05-23 18:44:04 +1000191.Xr ssh 1 )
Damien Miller81b6e782002-02-08 22:06:03 +1100192This option may be useful in debugging the client and server.
Damien Miller16a13332002-02-13 14:03:56 +1100193.It Fl R Ar num_requests
Damien Miller50677922003-05-23 18:44:04 +1000194Specify how many requests may be outstanding at any one time.
195Increasing this may slightly improve file transfer speed
196but will increase memory usage.
197The default is 16 outstanding requests.
Ben Lindstrom6a337632001-09-18 05:47:32 +0000198.It Fl S Ar program
199Name of the
200.Ar program
201to use for the encrypted connection.
202The program must understand
203.Xr ssh 1
204options.
Darren Tucker1f203942003-10-15 15:50:42 +1000205.It Fl s Ar subsystem | sftp_server
206Specifies the SSH2 subsystem or the path for an sftp server
207on the remote host.
208A path is useful for using
209.Nm
210over protocol version 1, or when the remote
211.Xr sshd 8
212does not have an sftp subsystem configured.
213.It Fl v
214Raise logging level.
215This option is also passed to ssh.
Damien Miller33804262001-02-04 23:20:18 +1100216.El
217.Sh INTERACTIVE COMMANDS
Damien Millerd7686fd2001-02-10 00:40:03 +1100218Once in interactive mode,
219.Nm
Ben Lindstrom24643222001-06-25 05:08:11 +0000220understands a set of commands similar to those of
Damien Miller33804262001-02-04 23:20:18 +1100221.Xr ftp 1 .
Ben Lindstrom27cb1d02001-02-10 21:59:35 +0000222Commands are case insensitive and pathnames may be enclosed in quotes if they
223contain spaces.
Darren Tucker1f203942003-10-15 15:50:42 +1000224.Bl -tag -width "lmdir path"
Ben Lindstrom59e12492001-08-15 23:22:56 +0000225.It Ic bye
Damien Miller50677922003-05-23 18:44:04 +1000226Quit
227.Nm sftp .
Damien Millerd7686fd2001-02-10 00:40:03 +1100228.It Ic cd Ar path
Ben Lindstrom24643222001-06-25 05:08:11 +0000229Change remote directory to
Damien Millerd7686fd2001-02-10 00:40:03 +1100230.Ar path .
Damien Millerd7686fd2001-02-10 00:40:03 +1100231.It Ic chgrp Ar grp Ar path
Ben Lindstrom24643222001-06-25 05:08:11 +0000232Change group of file
Damien Millerd7686fd2001-02-10 00:40:03 +1100233.Ar path
234to
Damien Miller33804262001-02-04 23:20:18 +1100235.Ar grp .
236.Ar grp
Damien Millerd7686fd2001-02-10 00:40:03 +1100237must be a numeric GID.
238.It Ic chmod Ar mode Ar path
Ben Lindstrom24643222001-06-25 05:08:11 +0000239Change permissions of file
Damien Millerd7686fd2001-02-10 00:40:03 +1100240.Ar path
241to
242.Ar mode .
243.It Ic chown Ar own Ar path
Ben Lindstrom24643222001-06-25 05:08:11 +0000244Change owner of file
Damien Millerd7686fd2001-02-10 00:40:03 +1100245.Ar path
246to
Damien Miller33804262001-02-04 23:20:18 +1100247.Ar own .
248.Ar own
249must be a numeric UID.
Ben Lindstromc9b6eab2001-03-07 01:29:17 +0000250.It Ic exit
Damien Miller50677922003-05-23 18:44:04 +1000251Quit
252.Nm sftp .
Ben Lindstrom9d4f2c82001-02-15 03:22:45 +0000253.It Xo Ic get
254.Op Ar flags
255.Ar remote-path
256.Op Ar local-path
257.Xc
Damien Miller33804262001-02-04 23:20:18 +1100258Retrieve the
Damien Millerd7686fd2001-02-10 00:40:03 +1100259.Ar remote-path
Damien Miller33804262001-02-04 23:20:18 +1100260and store it on the local machine.
261If the local
Ben Lindstrom24643222001-06-25 05:08:11 +0000262path name is not specified, it is given the same name it has on the
Damien Miller50677922003-05-23 18:44:04 +1000263remote machine.
264If the
Ben Lindstrom9d4f2c82001-02-15 03:22:45 +0000265.Fl P
266flag is specified, then the file's full permission and access time are
267copied too.
Ben Lindstromc9b6eab2001-03-07 01:29:17 +0000268.It Ic help
269Display help text.
Darren Tucker1f203942003-10-15 15:50:42 +1000270.It Ic lcd Ar path
271Change local directory to
272.Ar path .
Damien Millerd7686fd2001-02-10 00:40:03 +1100273.It Ic lls Op Ar ls-options Op Ar path
Ben Lindstrom24643222001-06-25 05:08:11 +0000274Display local directory listing of either
Damien Miller33804262001-02-04 23:20:18 +1100275.Ar path
276or current directory if
277.Ar path
Damien Millerd7686fd2001-02-10 00:40:03 +1100278is not specified.
279.It Ic lmkdir Ar path
Damien Miller33804262001-02-04 23:20:18 +1100280Create local directory specified by
Damien Millerd7686fd2001-02-10 00:40:03 +1100281.Ar path .
Damien Miller058316f2001-03-08 10:08:49 +1100282.It Ic ln Ar oldpath Ar newpath
Ben Lindstrom24643222001-06-25 05:08:11 +0000283Create a symbolic link from
Damien Miller058316f2001-03-08 10:08:49 +1100284.Ar oldpath
285to
286.Ar newpath .
Damien Millerd7686fd2001-02-10 00:40:03 +1100287.It Ic lpwd
288Print local working directory.
Damien Millere1a49812002-09-12 09:54:25 +1000289.It Xo Ic ls
290.Op Ar flags
291.Op Ar path
292.Xc
Damien Miller33804262001-02-04 23:20:18 +1100293Display remote directory listing of either
294.Ar path
Damien Millerd7686fd2001-02-10 00:40:03 +1100295or current directory if
Damien Miller33804262001-02-04 23:20:18 +1100296.Ar path
Damien Miller50677922003-05-23 18:44:04 +1000297is not specified.
298If the
Damien Millere1a49812002-09-12 09:54:25 +1000299.Fl l
300flag is specified, then display additional details including permissions
301and ownership information.
Damien Millerd7686fd2001-02-10 00:40:03 +1100302.It Ic lumask Ar umask
Ben Lindstrom24643222001-06-25 05:08:11 +0000303Set local umask to
Damien Millerd7686fd2001-02-10 00:40:03 +1100304.Ar umask .
305.It Ic mkdir Ar path
306Create remote directory specified by
307.Ar path .
Damien Miller62d57f62003-01-10 21:43:24 +1100308.It Ic progress
309Toggle display of progress meter.
Ben Lindstrom9d4f2c82001-02-15 03:22:45 +0000310.It Xo Ic put
311.Op Ar flags
312.Ar local-path
Ben Lindstromd5767812002-12-23 02:23:37 +0000313.Op Ar remote-path
Ben Lindstrom9d4f2c82001-02-15 03:22:45 +0000314.Xc
Damien Miller33804262001-02-04 23:20:18 +1100315Upload
Damien Millerd7686fd2001-02-10 00:40:03 +1100316.Ar local-path
Damien Miller50677922003-05-23 18:44:04 +1000317and store it on the remote machine.
318If the remote path name is not specified, it is given the same name it has
319on the local machine.
320If the
Ben Lindstrom9d4f2c82001-02-15 03:22:45 +0000321.Fl P
322flag is specified, then the file's full permission and access time are
323copied too.
Damien Millerd7686fd2001-02-10 00:40:03 +1100324.It Ic pwd
325Display remote working directory.
Damien Millerd7686fd2001-02-10 00:40:03 +1100326.It Ic quit
Damien Miller50677922003-05-23 18:44:04 +1000327Quit
328.Nm sftp .
Damien Millerd7686fd2001-02-10 00:40:03 +1100329.It Ic rename Ar oldpath Ar newpath
Damien Miller33804262001-02-04 23:20:18 +1100330Rename remote file from
331.Ar oldpath
332to
Damien Millerd7686fd2001-02-10 00:40:03 +1100333.Ar newpath .
Damien Millerd7686fd2001-02-10 00:40:03 +1100334.It Ic rm Ar path
Damien Miller33804262001-02-04 23:20:18 +1100335Delete remote file specified by
Damien Millerd7686fd2001-02-10 00:40:03 +1100336.Ar path .
Darren Tucker1f203942003-10-15 15:50:42 +1000337.It Ic rmdir Ar path
338Remove remote directory specified by
339.Ar path .
Damien Miller058316f2001-03-08 10:08:49 +1100340.It Ic symlink Ar oldpath Ar newpath
Ben Lindstrom24643222001-06-25 05:08:11 +0000341Create a symbolic link from
Damien Miller058316f2001-03-08 10:08:49 +1100342.Ar oldpath
343to
344.Ar newpath .
Damien Miller63421802003-01-08 14:05:23 +1100345.It Ic version
346Display the
347.Nm
348protocol version.
Damien Millerc2b98272003-09-03 12:13:30 +1000349.It Ic \&! Ar command
Ben Lindstrom24643222001-06-25 05:08:11 +0000350Execute
Damien Miller33804262001-02-04 23:20:18 +1100351.Ar command
Damien Millerd7686fd2001-02-10 00:40:03 +1100352in local shell.
Damien Millerc2b98272003-09-03 12:13:30 +1000353.It Ic \&!
Damien Millerd7686fd2001-02-10 00:40:03 +1100354Escape to local shell.
Damien Millerc2b98272003-09-03 12:13:30 +1000355.It Ic \&?
Damien Millerd7686fd2001-02-10 00:40:03 +1100356Synonym for help.
357.El
Damien Miller33804262001-02-04 23:20:18 +1100358.Sh SEE ALSO
Darren Tucker1f203942003-10-15 15:50:42 +1000359.Xr ftp 1 ,
Ben Lindstrom160ec622001-04-22 17:17:46 +0000360.Xr scp 1 ,
Damien Miller33804262001-02-04 23:20:18 +1100361.Xr ssh 1 ,
362.Xr ssh-add 1 ,
363.Xr ssh-keygen 1 ,
Ben Lindstrom3072aae2002-06-21 01:02:39 +0000364.Xr ssh_config 5 ,
Ben Lindstrom160ec622001-04-22 17:17:46 +0000365.Xr sftp-server 8 ,
366.Xr sshd 8
367.Rs
Ben Lindstrom90fd0602001-06-25 04:45:33 +0000368.%A T. Ylonen
369.%A S. Lehtinen
Ben Lindstrom160ec622001-04-22 17:17:46 +0000370.%T "SSH File Transfer Protocol"
371.%N draft-ietf-secsh-filexfer-00.txt
372.%D January 2001
373.%O work in progress material
374.Re