1 .\" $OpenBSD: sftp.1,v 1.44 2003/05/20 12:03:35 jmc Exp $
3 .\" Copyright (c) 2001 Damien Miller. All rights reserved.
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30 .Nd secure file transfer program
36 .Op Fl o Ar ssh_option
37 .Op Fl s Ar subsystem | sftp_server
38 .Op Fl B Ar buffer_size
39 .Op Fl F Ar ssh_config
40 .Op Fl P Ar sftp_server path
41 .Op Fl R Ar num_requests
46 .Oo Oo Ar user Ns No @ Oc Ns
47 .Ar host Ns Oo : Ns Ar file Oo
50 .Oo Oo Ar user Ns No @ Oc Ns
51 .Ar host Ns Oo : Ns Ar dir Ns
55 .Oo Ar user Ns No @ Oc Ns Ar host Ns
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 the sftp client to start in a remote directory.
76 The final usage format allows for automated sessions using the
79 In such cases, it is usually necessary to configure public key authentication
80 to obviate the need to enter a password at connection time (see
85 The options are as follows:
88 Batch mode reads a series of commands from an input
92 Since it lacks user interaction it should be used in conjunction with
93 non-interactive authentication.
95 will abort if any of the following
97 .Ic get , put , rename , ln ,
98 .Ic rm , mkdir , chdir , ls ,
99 .Ic lchdir , chmod , chown , chgrp , lpwd
102 Termination on error can be suppressed on a command by command basis by
103 prefixing the command with a
105 character (for example,
106 .Ic -rm /tmp/blah* ) .
107 .It Fl o Ar ssh_option
108 Can be used to pass options to
110 in the format used in
112 This is useful for specifying options
113 for which there is no separate
116 For example, to specify an alternate port use:
118 .It Fl s Ar subsystem | sftp_server
119 Specifies the SSH2 subsystem or the path for an sftp server
121 A path is useful for using
123 over protocol version 1, or when the remote
125 does not have an sftp subsystem configured.
128 This option is also passed to ssh.
129 .It Fl B Ar buffer_size
130 Specify the size of the buffer that
132 uses when transferring files.
133 Larger buffers require fewer round trips at the cost of higher
135 The default is 32768 bytes.
137 Enables compression (via ssh's
140 .It Fl F Ar ssh_config
141 Specifies an alternative
142 per-user configuration file for
144 This option is directly passed to
146 .It Fl P Ar sftp_server path
147 Connect directly to a local sftp server
150 This option may be useful in debugging the client and server.
151 .It Fl R Ar num_requests
152 Specify how many requests may be outstanding at any one time.
153 Increasing this may slightly improve file transfer speed
154 but will increase memory usage.
155 The default is 16 outstanding requests.
159 to use for the encrypted connection.
160 The program must understand
164 Specify the use of protocol version 1.
166 .Sh INTERACTIVE COMMANDS
167 Once in interactive mode,
169 understands a set of commands similar to those of
171 Commands are case insensitive and pathnames may be enclosed in quotes if they
178 Change remote directory to
181 Change local directory to
183 .It Ic chgrp Ar grp Ar path
189 must be a numeric GID.
190 .It Ic chmod Ar mode Ar path
191 Change permissions of file
195 .It Ic chown Ar own Ar path
201 must be a numeric UID.
212 and store it on the local machine.
214 path name is not specified, it is given the same name it has on the
218 flag is specified, then the file's full permission and access time are
222 .It Ic lls Op Ar ls-options Op Ar path
223 Display local directory listing of either
225 or current directory if
228 .It Ic lmkdir Ar path
229 Create local directory specified by
231 .It Ic ln Ar oldpath Ar newpath
232 Create a symbolic link from
237 Print local working directory.
242 Display remote directory listing of either
244 or current directory if
249 flag is specified, then display additional details including permissions
250 and ownership information.
251 .It Ic lumask Ar umask
255 Create remote directory specified by
258 Toggle display of progress meter.
266 and store it on the remote machine.
267 If the remote path name is not specified, it is given the same name it has
268 on the local machine.
271 flag is specified, then the file's full permission and access time are
274 Display remote working directory.
278 .It Ic rename Ar oldpath Ar newpath
279 Rename remote file from
284 Remove remote directory specified by
287 Delete remote file specified by
289 .It Ic symlink Ar oldpath Ar newpath
290 Create a symbolic link from
303 Escape to local shell.
318 .%T "SSH File Transfer Protocol"
319 .%N draft-ietf-secsh-filexfer-00.txt
321 .%O work in progress material