1 .\" $OpenBSD: sftp.1,v 1.67 2008/07/15 02:23:14 djm Exp $
3 .\" Copyright (c) 2001 Damien Miller. All rights reserved.
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25 .Dd $Mdocdate: July 15 2008 $
30 .Nd secure file transfer program
35 .Op Fl B Ar buffer_size
37 .Op Fl F Ar ssh_config
38 .Op Fl o Ar ssh_option
39 .Op Fl P Ar sftp_server_path
40 .Op Fl R Ar num_requests
42 .Op Fl s Ar subsystem | sftp_server
46 .Oo Oo Ar user Ns @ Oc Ns
47 .Ar host Ns Oo : Ns Ar file Oo
50 .Oo Oo Ar user Ns @ Oc Ns
51 .Ar host Ns Oo : Ns Ar dir Ns
55 .Oo Ar user Ns @ Oc Ns Ar host
58 is an interactive file transfer program, similar to
60 which performs all operations over an encrypted
63 It may also use many features of ssh, such as public key authentication and
66 connects and logs into the specified
68 then enters an interactive command mode.
70 The second usage format will retrieve files automatically if a non-interactive
71 authentication method is used; otherwise it will do so after
72 successful interactive authentication.
74 The third usage format allows
76 to start in a remote directory.
78 The final usage format allows for automated sessions using the
81 In such cases, it is necessary to configure non-interactive authentication
82 to obviate the need to enter a password at connection time (see
87 The options are as follows:
90 Specify the use of protocol version 1.
91 .It Fl B Ar buffer_size
92 Specify the size of the buffer that
94 uses when transferring files.
95 Larger buffers require fewer round trips at the cost of higher
97 The default is 32768 bytes.
99 Batch mode reads a series of commands from an input
103 Since it lacks user interaction it should be used in conjunction with
104 non-interactive authentication.
109 may be used to indicate standard input.
111 will abort if any of the following
113 .Ic get , put , rename , ln ,
114 .Ic rm , mkdir , chdir , ls ,
115 .Ic lchdir , chmod , chown ,
116 .Ic chgrp , lpwd , df ,
119 Termination on error can be suppressed on a command by command basis by
120 prefixing the command with a
122 character (for example,
123 .Ic -rm /tmp/blah* ) .
125 Enables compression (via ssh's
128 .It Fl F Ar ssh_config
129 Specifies an alternative
130 per-user configuration file for
132 This option is directly passed to
134 .It Fl o Ar ssh_option
135 Can be used to pass options to
137 in the format used in
139 This is useful for specifying options
140 for which there is no separate
143 For example, to specify an alternate port use:
145 For full details of the options listed below, and their possible values, see
148 .Bl -tag -width Ds -offset indent -compact
152 .It ChallengeResponseAuthentication
158 .It ConnectionAttempts
162 .It GlobalKnownHostsFile
163 .It GSSAPIAuthentication
164 .It GSSAPIDelegateCredentials
167 .It HostbasedAuthentication
168 .It HostKeyAlgorithms
173 .It KbdInteractiveDevices
176 .It NoHostAuthenticationForLocalhost
177 .It NumberOfPasswordPrompts
178 .It PasswordAuthentication
180 .It PreferredAuthentications
183 .It PubkeyAuthentication
185 .It RhostsRSAAuthentication
186 .It RSAAuthentication
188 .It ServerAliveInterval
189 .It ServerAliveCountMax
191 .It StrictHostKeyChecking
193 .It UsePrivilegedPort
195 .It UserKnownHostsFile
198 .It Fl P Ar sftp_server_path
199 Connect directly to a local sftp server
202 This option may be useful in debugging the client and server.
203 .It Fl R Ar num_requests
204 Specify how many requests may be outstanding at any one time.
205 Increasing this may slightly improve file transfer speed
206 but will increase memory usage.
207 The default is 256 outstanding requests providing for 8MB
208 of outstanding data with a 32KB buffer.
212 to use for the encrypted connection.
213 The program must understand
216 .It Fl s Ar subsystem | sftp_server
217 Specifies the SSH2 subsystem or the path for an sftp server
219 A path is useful for using
221 over protocol version 1, or when the remote
223 does not have an sftp subsystem configured.
226 This option is also passed to ssh.
228 .Sh INTERACTIVE COMMANDS
229 Once in interactive mode,
231 understands a set of commands similar to those of
233 Commands are case insensitive.
234 Pathnames that contain spaces must be enclosed in quotes.
235 Any special characters contained within pathnames that are recognized by
237 must be escaped with backslashes
244 Change remote directory to
246 .It Ic chgrp Ar grp Ar path
254 characters and may match multiple files.
256 must be a numeric GID.
257 .It Ic chmod Ar mode Ar path
258 Change permissions of file
265 characters and may match multiple files.
266 .It Ic chown Ar own Ar path
274 characters and may match multiple files.
276 must be a numeric UID.
281 Display usage information for the filesystem holding the current directory
287 flag is specified, the capacity information will be displayed using
288 "human-readable" suffixes.
291 flag requests display of inode information in addition to capacity information.
292 This command is only supported on servers that implement the
293 .Dq statvfs@openssh.com
305 and store it on the local machine.
307 path name is not specified, it is given the same name it has on the
312 characters and may match multiple files.
317 must specify a directory.
320 flag is specified, then full file permissions and access times are
325 Change local directory to
327 .It Ic lls Op Ar ls-options Op Ar path
328 Display local directory listing of either
330 or current directory if
334 may contain any flags supported by the local system's
340 characters and may match multiple files.
341 .It Ic lmkdir Ar path
342 Create local directory specified by
344 .It Ic ln Ar oldpath Ar newpath
345 Create a symbolic link from
350 Print local working directory.
355 Display a remote directory listing of either
357 or the current directory if
363 characters and may match multiple files.
365 The following flags are recognized and alter the behaviour of
370 Produce single columnar output.
372 List files beginning with a dot
375 Do not sort the listing.
376 The default sort order is lexicographical.
378 Display additional details including permissions
379 and ownership information.
381 Produce a long listing with user and group information presented
384 Reverse the sort order of the listing.
386 Sort the listing by file size.
388 Sort the listing by last modification time.
390 .It Ic lumask Ar umask
394 Create remote directory specified by
397 Toggle display of progress meter.
405 and store it on the remote machine.
406 If the remote path name is not specified, it is given the same name it has
407 on the local machine.
411 characters and may match multiple files.
416 must specify a directory.
419 flag is specified, then the file's full permission and access time are
422 Display remote working directory.
426 .It Ic rename Ar oldpath Ar newpath
427 Rename remote file from
432 Delete remote file specified by
435 Remove remote directory specified by
437 .It Ic symlink Ar oldpath Ar newpath
438 Create a symbolic link from
446 .It Ic \&! Ar command
451 Escape to local shell.
469 .%T "SSH File Transfer Protocol"
470 .%N draft-ietf-secsh-filexfer-00.txt
472 .%O work in progress material