1 .\" $OpenBSD: sftp.1,v 1.90 2011/08/07 12:55:30 dtucker Exp $
3 .\" Copyright (c) 2001 Damien Miller. All rights reserved.
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25 .Dd $Mdocdate: August 7 2011 $
30 .Nd secure file transfer program
35 .Op Fl B Ar buffer_size
38 .Op Fl D Ar sftp_server_path
39 .Op Fl F Ar ssh_config
40 .Op Fl i Ar identity_file
42 .Op Fl o Ar ssh_option
44 .Op Fl R Ar num_requests
46 .Op Fl s Ar subsystem | sftp_server
50 .Oo Ar user Ns @ Oc Ns
51 .Ar host Ns Op : Ns Ar
55 .Ar host Ns Oo : Ns Ar dir Ns
60 .Oo Ar user Ns @ Oc Ns Ar host
63 is an interactive file transfer program, similar to
65 which performs all operations over an encrypted
68 It may also use many features of ssh, such as public key authentication and
71 connects and logs into the specified
73 then enters an interactive command mode.
75 The second usage format will retrieve files automatically if a non-interactive
76 authentication method is used; otherwise it will do so after
77 successful interactive authentication.
79 The third usage format allows
81 to start in a remote directory.
83 The final usage format allows for automated sessions using the
86 In such cases, it is necessary to configure non-interactive authentication
87 to obviate the need to enter a password at connection time (see
93 Since some usage formats use colon characters to delimit host names from path
94 names, IPv6 addresses must be enclosed in square brackets to avoid ambiguity.
96 The options are as follows:
99 Specify the use of protocol version 1.
101 Specify the use of protocol version 2.
105 to use IPv4 addresses only.
109 to use IPv6 addresses only.
110 .It Fl B Ar buffer_size
111 Specify the size of the buffer that
113 uses when transferring files.
114 Larger buffers require fewer round trips at the cost of higher
116 The default is 32768 bytes.
117 .It Fl b Ar batchfile
118 Batch mode reads a series of commands from an input
122 Since it lacks user interaction it should be used in conjunction with
123 non-interactive authentication.
128 may be used to indicate standard input.
130 will abort if any of the following
132 .Ic get , put , rename , ln ,
133 .Ic rm , mkdir , chdir , ls ,
134 .Ic lchdir , chmod , chown ,
135 .Ic chgrp , lpwd , df , symlink ,
138 Termination on error can be suppressed on a command by command basis by
139 prefixing the command with a
141 character (for example,
142 .Ic -rm /tmp/blah* ) .
144 Enables compression (via ssh's
148 Selects the cipher to use for encrypting the data transfers.
149 This option is directly passed to
151 .It Fl D Ar sftp_server_path
152 Connect directly to a local sftp server
155 This option may be useful in debugging the client and server.
156 .It Fl F Ar ssh_config
157 Specifies an alternative
158 per-user configuration file for
160 This option is directly passed to
162 .It Fl i Ar identity_file
163 Selects the file from which the identity (private key) for public key
164 authentication is read.
165 This option is directly passed to
168 Limits the used bandwidth, specified in Kbit/s.
169 .It Fl o Ar ssh_option
170 Can be used to pass options to
172 in the format used in
174 This is useful for specifying options
175 for which there is no separate
178 For example, to specify an alternate port use:
180 For full details of the options listed below, and their possible values, see
183 .Bl -tag -width Ds -offset indent -compact
187 .It ChallengeResponseAuthentication
193 .It ConnectionAttempts
197 .It GlobalKnownHostsFile
198 .It GSSAPIAuthentication
199 .It GSSAPIDelegateCredentials
202 .It HostbasedAuthentication
203 .It HostKeyAlgorithms
209 .It KbdInteractiveDevices
213 .It NoHostAuthenticationForLocalhost
214 .It NumberOfPasswordPrompts
215 .It PasswordAuthentication
218 .It PreferredAuthentications
221 .It PubkeyAuthentication
223 .It RhostsRSAAuthentication
224 .It RSAAuthentication
226 .It ServerAliveInterval
227 .It ServerAliveCountMax
228 .It StrictHostKeyChecking
230 .It UsePrivilegedPort
232 .It UserKnownHostsFile
236 Specifies the port to connect to on the remote host.
238 Preserves modification times, access times, and modes from the
239 original files transferred.
241 Quiet mode: disables the progress meter as well as warning and
242 diagnostic messages from
244 .It Fl R Ar num_requests
245 Specify how many requests may be outstanding at any one time.
246 Increasing this may slightly improve file transfer speed
247 but will increase memory usage.
248 The default is 256 outstanding requests providing for 8MB
249 of outstanding data with a 32KB buffer.
251 Recursively copy entire directories when uploading and downloading.
254 does not follow symbolic links encountered in the tree traversal.
258 to use for the encrypted connection.
259 The program must understand
262 .It Fl s Ar subsystem | sftp_server
263 Specifies the SSH2 subsystem or the path for an sftp server
265 A path is useful for using
267 over protocol version 1, or when the remote
269 does not have an sftp subsystem configured.
272 This option is also passed to ssh.
274 .Sh INTERACTIVE COMMANDS
275 Once in interactive mode,
277 understands a set of commands similar to those of
279 Commands are case insensitive.
280 Pathnames that contain spaces must be enclosed in quotes.
281 Any special characters contained within pathnames that are recognized by
283 must be escaped with backslashes
290 Change remote directory to
292 .It Ic chgrp Ar grp Ar path
300 characters and may match multiple files.
302 must be a numeric GID.
303 .It Ic chmod Ar mode Ar path
304 Change permissions of file
311 characters and may match multiple files.
312 .It Ic chown Ar own Ar path
320 characters and may match multiple files.
322 must be a numeric UID.
327 Display usage information for the filesystem holding the current directory
333 flag is specified, the capacity information will be displayed using
334 "human-readable" suffixes.
337 flag requests display of inode information in addition to capacity information.
338 This command is only supported on servers that implement the
339 .Dq statvfs@openssh.com
351 and store it on the local machine.
353 path name is not specified, it is given the same name it has on the
358 characters and may match multiple files.
363 must specify a directory.
369 flag is specified, then full file permissions and access times are
374 flag is specified then directories will be copied recursively.
377 does not follow symbolic links when performing recursive transfers.
381 Change local directory to
383 .It Ic lls Op Ar ls-options Op Ar path
384 Display local directory listing of either
386 or current directory if
390 may contain any flags supported by the local system's
396 characters and may match multiple files.
397 .It Ic lmkdir Ar path
398 Create local directory specified by
411 flag is specified the created link is a symbolic link, otherwise it is
414 Print local working directory.
419 Display a remote directory listing of either
421 or the current directory if
427 characters and may match multiple files.
429 The following flags are recognized and alter the behaviour of
434 Produce single columnar output.
436 List files beginning with a dot
439 Do not sort the listing.
440 The default sort order is lexicographical.
442 When used with a long format option, use unit suffixes: Byte, Kilobyte,
443 Megabyte, Gigabyte, Terabyte, Petabyte, and Exabyte in order to reduce
444 the number of digits to four or fewer using powers of 2 for sizes (K=1024,
447 Display additional details including permissions
448 and ownership information.
450 Produce a long listing with user and group information presented
453 Reverse the sort order of the listing.
455 Sort the listing by file size.
457 Sort the listing by last modification time.
459 .It Ic lumask Ar umask
463 Create remote directory specified by
466 Toggle display of progress meter.
474 and store it on the remote machine.
475 If the remote path name is not specified, it is given the same name it has
476 on the local machine.
480 characters and may match multiple files.
485 must specify a directory.
491 flag is specified, then full file permissions and access times are
496 flag is specified then directories will be copied recursively.
499 does not follow symbolic links when performing recursive transfers.
501 Display remote working directory.
505 .It Ic rename Ar oldpath Ar newpath
506 Rename remote file from
511 Delete remote file specified by
514 Remove remote directory specified by
516 .It Ic symlink Ar oldpath Ar newpath
517 Create a symbolic link from
525 .It Ic \&! Ns Ar command
530 Escape to local shell.
548 .%T "SSH File Transfer Protocol"
549 .%N draft-ietf-secsh-filexfer-00.txt
551 .%O work in progress material