Annotation of src/usr.bin/ssh/sftp.1, Revision 1.102
1.102 ! jmc 1: .\" $OpenBSD: sftp.1,v 1.101 2015/01/30 11:43:14 djm Exp $
1.1 djm 2: .\"
1.9 deraadt 3: .\" Copyright (c) 2001 Damien Miller. All rights reserved.
1.1 djm 4: .\"
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6: .\" modification, are permitted provided that the following conditions
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1.102 ! jmc 25: .Dd $Mdocdate: January 30 2015 $
1.1 djm 26: .Dt SFTP 1
27: .Os
28: .Sh NAME
29: .Nm sftp
1.44 jmc 30: .Nd secure file transfer program
1.1 djm 31: .Sh SYNOPSIS
1.43 jmc 32: .Nm sftp
1.41 jmc 33: .Bk -words
1.95 djm 34: .Op Fl 1246aCfpqrv
1.46 jmc 35: .Op Fl B Ar buffer_size
1.29 markus 36: .Op Fl b Ar batchfile
1.70 djm 37: .Op Fl c Ar cipher
1.72 djm 38: .Op Fl D Ar sftp_server_path
1.46 jmc 39: .Op Fl F Ar ssh_config
1.73 jmc 40: .Op Fl i Ar identity_file
1.85 djm 41: .Op Fl l Ar limit
1.29 markus 42: .Op Fl o Ar ssh_option
1.72 djm 43: .Op Fl P Ar port
1.30 djm 44: .Op Fl R Ar num_requests
1.26 stevesk 45: .Op Fl S Ar program
1.46 jmc 46: .Op Fl s Ar subsystem | sftp_server
1.26 stevesk 47: .Ar host
1.41 jmc 48: .Ek
1.43 jmc 49: .Nm sftp
1.68 djm 50: .Oo Ar user Ns @ Oc Ns
51: .Ar host Ns Op : Ns Ar
1.43 jmc 52: .Nm sftp
1.84 jmc 53: .Oo
54: .Ar user Ns @ Oc Ns
1.41 jmc 55: .Ar host Ns Oo : Ns Ar dir Ns
1.84 jmc 56: .Op Ar /
57: .Oc
1.43 jmc 58: .Nm sftp
1.42 djm 59: .Fl b Ar batchfile
1.45 jmc 60: .Oo Ar user Ns @ Oc Ns Ar host
1.1 djm 61: .Sh DESCRIPTION
62: .Nm
63: is an interactive file transfer program, similar to
64: .Xr ftp 1 ,
65: which performs all operations over an encrypted
66: .Xr ssh 1
67: transport.
68: It may also use many features of ssh, such as public key authentication and
69: compression.
70: .Nm
71: connects and logs into the specified
1.18 stevesk 72: .Ar host ,
1.1 djm 73: then enters an interactive command mode.
1.15 mouring 74: .Pp
1.21 itojun 75: The second usage format will retrieve files automatically if a non-interactive
1.18 stevesk 76: authentication method is used; otherwise it will do so after
77: successful interactive authentication.
1.15 mouring 78: .Pp
1.60 jaredy 79: The third usage format allows
80: .Nm
81: to start in a remote directory.
1.1 djm 82: .Pp
1.44 jmc 83: The final usage format allows for automated sessions using the
1.42 djm 84: .Fl b
1.44 jmc 85: option.
1.62 jmc 86: In such cases, it is necessary to configure non-interactive authentication
1.44 jmc 87: to obviate the need to enter a password at connection time (see
1.42 djm 88: .Xr sshd 8
1.43 jmc 89: and
1.42 djm 90: .Xr ssh-keygen 1
1.44 jmc 91: for details).
1.89 djm 92: .Pp
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.
95: .Pp
1.1 djm 96: The options are as follows:
97: .Bl -tag -width Ds
1.46 jmc 98: .It Fl 1
99: Specify the use of protocol version 1.
1.70 djm 100: .It Fl 2
101: Specify the use of protocol version 2.
102: .It Fl 4
103: Forces
104: .Nm
105: to use IPv4 addresses only.
106: .It Fl 6
107: Forces
108: .Nm
109: to use IPv6 addresses only.
1.94 jmc 110: .It Fl a
1.99 jmc 111: Attempt to continue interrupted transfers rather than overwriting
1.98 logan 112: existing partial or complete copies of files.
1.99 jmc 113: If the partial contents differ from those being transferred,
1.98 logan 114: then the resultant file is likely to be corrupt.
1.46 jmc 115: .It Fl B Ar buffer_size
116: Specify the size of the buffer that
117: .Nm
118: uses when transferring files.
119: Larger buffers require fewer round trips at the cost of higher
120: memory consumption.
121: The default is 32768 bytes.
1.10 deraadt 122: .It Fl b Ar batchfile
123: Batch mode reads a series of commands from an input
1.13 stevesk 124: .Ar batchfile
1.10 deraadt 125: instead of
1.13 stevesk 126: .Em stdin .
127: Since it lacks user interaction it should be used in conjunction with
1.51 jmc 128: non-interactive authentication.
1.50 djm 129: A
1.51 jmc 130: .Ar batchfile
131: of
132: .Sq \-
1.50 djm 133: may be used to indicate standard input.
1.13 stevesk 134: .Nm
1.21 itojun 135: will abort if any of the following
136: commands fail:
1.98 logan 137: .Ic get , put , reget , reput, rename , ln ,
1.41 jmc 138: .Ic rm , mkdir , chdir , ls ,
1.66 jmc 139: .Ic lchdir , chmod , chown ,
1.88 djm 140: .Ic chgrp , lpwd , df , symlink ,
1.10 deraadt 141: and
1.13 stevesk 142: .Ic lmkdir .
1.41 jmc 143: Termination on error can be suppressed on a command by command basis by
144: prefixing the command with a
1.51 jmc 145: .Sq \-
1.44 jmc 146: character (for example,
147: .Ic -rm /tmp/blah* ) .
1.71 jmc 148: .It Fl C
149: Enables compression (via ssh's
150: .Fl C
151: flag).
1.70 djm 152: .It Fl c Ar cipher
153: Selects the cipher to use for encrypting the data transfers.
154: This option is directly passed to
155: .Xr ssh 1 .
1.72 djm 156: .It Fl D Ar sftp_server_path
157: Connect directly to a local sftp server
158: (rather than via
159: .Xr ssh 1 ) .
160: This option may be useful in debugging the client and server.
1.46 jmc 161: .It Fl F Ar ssh_config
162: Specifies an alternative
163: per-user configuration file for
164: .Xr ssh 1 .
165: This option is directly passed to
166: .Xr ssh 1 .
1.95 djm 167: .It Fl f
168: Requests that files be flushed to disk immediately after transfer.
169: When uploading files, this feature is only enabled if the server
170: implements the "fsync@openssh.com" extension.
1.70 djm 171: .It Fl i Ar identity_file
172: Selects the file from which the identity (private key) for public key
173: authentication is read.
174: This option is directly passed to
175: .Xr ssh 1 .
1.85 djm 176: .It Fl l Ar limit
177: Limits the used bandwidth, specified in Kbit/s.
1.1 djm 178: .It Fl o Ar ssh_option
1.23 stevesk 179: Can be used to pass options to
180: .Nm ssh
1.35 stevesk 181: in the format used in
182: .Xr ssh_config 5 .
183: This is useful for specifying options
1.23 stevesk 184: for which there is no separate
185: .Nm sftp
1.44 jmc 186: command-line flag.
187: For example, to specify an alternate port use:
1.26 stevesk 188: .Ic sftp -oPort=24 .
1.46 jmc 189: For full details of the options listed below, and their possible values, see
190: .Xr ssh_config 5 .
191: .Pp
192: .Bl -tag -width Ds -offset indent -compact
193: .It AddressFamily
194: .It BatchMode
195: .It BindAddress
1.97 djm 196: .It CanonicalDomains
197: .It CanonicalizeFallbackLocal
198: .It CanonicalizeHostname
199: .It CanonicalizeMaxDots
200: .It CanonicalizePermittedCNAMEs
1.102 ! jmc 201: .It CertificateFile
1.46 jmc 202: .It ChallengeResponseAuthentication
203: .It CheckHostIP
204: .It Cipher
205: .It Ciphers
206: .It Compression
207: .It CompressionLevel
208: .It ConnectionAttempts
1.54 dtucker 209: .It ConnectTimeout
1.55 djm 210: .It ControlMaster
211: .It ControlPath
1.91 djm 212: .It ControlPersist
1.46 jmc 213: .It GlobalKnownHostsFile
214: .It GSSAPIAuthentication
215: .It GSSAPIDelegateCredentials
1.61 jmc 216: .It HashKnownHosts
1.46 jmc 217: .It Host
218: .It HostbasedAuthentication
1.101 djm 219: .It HostbasedKeyTypes
1.46 jmc 220: .It HostKeyAlgorithms
221: .It HostKeyAlias
222: .It HostName
223: .It IdentityFile
1.52 markus 224: .It IdentitiesOnly
1.87 jmc 225: .It IPQoS
1.91 djm 226: .It KbdInteractiveAuthentication
1.58 djm 227: .It KbdInteractiveDevices
1.86 jmc 228: .It KexAlgorithms
1.46 jmc 229: .It LogLevel
230: .It MACs
231: .It NoHostAuthenticationForLocalhost
232: .It NumberOfPasswordPrompts
233: .It PasswordAuthentication
1.83 markus 234: .It PKCS11Provider
1.46 jmc 235: .It Port
236: .It PreferredAuthentications
237: .It Protocol
238: .It ProxyCommand
239: .It PubkeyAuthentication
1.63 dtucker 240: .It RekeyLimit
1.46 jmc 241: .It RhostsRSAAuthentication
242: .It RSAAuthentication
1.53 jmc 243: .It SendEnv
1.49 markus 244: .It ServerAliveInterval
245: .It ServerAliveCountMax
1.46 jmc 246: .It StrictHostKeyChecking
1.48 markus 247: .It TCPKeepAlive
1.100 djm 248: .It UpdateHostKeys
1.46 jmc 249: .It UsePrivilegedPort
250: .It User
251: .It UserKnownHostsFile
252: .It VerifyHostKeyDNS
253: .El
1.72 djm 254: .It Fl P Ar port
255: Specifies the port to connect to on the remote host.
1.74 djm 256: .It Fl p
257: Preserves modification times, access times, and modes from the
258: original files transferred.
1.70 djm 259: .It Fl q
260: Quiet mode: disables the progress meter as well as warning and
261: diagnostic messages from
262: .Xr ssh 1 .
1.30 djm 263: .It Fl R Ar num_requests
1.44 jmc 264: Specify how many requests may be outstanding at any one time.
265: Increasing this may slightly improve file transfer speed
266: but will increase memory usage.
1.67 djm 267: The default is 64 outstanding requests.
1.74 djm 268: .It Fl r
269: Recursively copy entire directories when uploading and downloading.
270: Note that
271: .Nm
272: does not follow symbolic links encountered in the tree traversal.
1.26 stevesk 273: .It Fl S Ar program
274: Name of the
275: .Ar program
276: to use for the encrypted connection.
277: The program must understand
278: .Xr ssh 1
279: options.
1.46 jmc 280: .It Fl s Ar subsystem | sftp_server
281: Specifies the SSH2 subsystem or the path for an sftp server
282: on the remote host.
283: A path is useful for using
284: .Nm
285: over protocol version 1, or when the remote
286: .Xr sshd 8
287: does not have an sftp subsystem configured.
288: .It Fl v
289: Raise logging level.
290: This option is also passed to ssh.
1.1 djm 291: .El
292: .Sh INTERACTIVE COMMANDS
1.2 djm 293: Once in interactive mode,
294: .Nm
1.21 itojun 295: understands a set of commands similar to those of
1.1 djm 296: .Xr ftp 1 .
1.60 jaredy 297: Commands are case insensitive.
298: Pathnames that contain spaces must be enclosed in quotes.
299: Any special characters contained within pathnames that are recognized by
300: .Xr glob 3
301: must be escaped with backslashes
302: .Pq Sq \e .
303: .Bl -tag -width Ds
1.22 markus 304: .It Ic bye
1.44 jmc 305: Quit
306: .Nm sftp .
1.3 deraadt 307: .It Ic cd Ar path
1.21 itojun 308: Change remote directory to
1.3 deraadt 309: .Ar path .
310: .It Ic chgrp Ar grp Ar path
1.21 itojun 311: Change group of file
1.5 stevesk 312: .Ar path
313: to
1.1 djm 314: .Ar grp .
1.60 jaredy 315: .Ar path
316: may contain
317: .Xr glob 3
318: characters and may match multiple files.
1.1 djm 319: .Ar grp
1.5 stevesk 320: must be a numeric GID.
1.3 deraadt 321: .It Ic chmod Ar mode Ar path
1.21 itojun 322: Change permissions of file
1.5 stevesk 323: .Ar path
324: to
1.3 deraadt 325: .Ar mode .
1.60 jaredy 326: .Ar path
327: may contain
328: .Xr glob 3
329: characters and may match multiple files.
1.3 deraadt 330: .It Ic chown Ar own Ar path
1.21 itojun 331: Change owner of file
1.5 stevesk 332: .Ar path
333: to
1.1 djm 334: .Ar own .
1.60 jaredy 335: .Ar path
336: may contain
337: .Xr glob 3
338: characters and may match multiple files.
1.1 djm 339: .Ar own
340: must be a numeric UID.
1.65 djm 341: .It Xo Ic df
342: .Op Fl hi
343: .Op Ar path
344: .Xc
345: Display usage information for the filesystem holding the current directory
346: (or
347: .Ar path
348: if specified).
349: If the
350: .Fl h
351: flag is specified, the capacity information will be displayed using
352: "human-readable" suffixes.
353: The
354: .Fl i
355: flag requests display of inode information in addition to capacity information.
356: This command is only supported on servers that implement the
357: .Dq statvfs@openssh.com
358: extension.
1.11 deraadt 359: .It Ic exit
1.44 jmc 360: Quit
361: .Nm sftp .
1.7 djm 362: .It Xo Ic get
1.95 djm 363: .Op Fl afPpr
1.7 djm 364: .Ar remote-path
365: .Op Ar local-path
366: .Xc
1.1 djm 367: Retrieve the
1.5 stevesk 368: .Ar remote-path
1.1 djm 369: and store it on the local machine.
370: If the local
1.21 itojun 371: path name is not specified, it is given the same name it has on the
1.44 jmc 372: remote machine.
1.60 jaredy 373: .Ar remote-path
374: may contain
375: .Xr glob 3
376: characters and may match multiple files.
377: If it does and
378: .Ar local-path
379: is specified, then
380: .Ar local-path
381: must specify a directory.
1.74 djm 382: .Pp
1.92 djm 383: If the
384: .Fl a
385: flag is specified, then attempt to resume partial transfers of existing files.
386: Note that resumption assumes that any partial copy of the local file matches
387: the remote copy.
1.93 djm 388: If the remote file contents differ from the partial local copy then the
389: resultant file is likely to be corrupt.
1.92 djm 390: .Pp
1.95 djm 391: If the
392: .Fl f
393: flag is specified, then
394: .Xr fsync 2
1.96 jmc 395: will be called after the file transfer has completed to flush the file
1.95 djm 396: to disk.
397: .Pp
1.76 jmc 398: If either the
1.75 djm 399: .Fl P
1.74 djm 400: or
401: .Fl p
1.60 jaredy 402: flag is specified, then full file permissions and access times are
1.7 djm 403: copied too.
1.74 djm 404: .Pp
405: If the
406: .Fl r
407: flag is specified then directories will be copied recursively.
408: Note that
409: .Nm
410: does not follow symbolic links when performing recursive transfers.
1.11 deraadt 411: .It Ic help
412: Display help text.
1.46 jmc 413: .It Ic lcd Ar path
414: Change local directory to
415: .Ar path .
1.3 deraadt 416: .It Ic lls Op Ar ls-options Op Ar path
1.21 itojun 417: Display local directory listing of either
1.1 djm 418: .Ar path
419: or current directory if
420: .Ar path
1.5 stevesk 421: is not specified.
1.60 jaredy 422: .Ar ls-options
423: may contain any flags supported by the local system's
424: .Xr ls 1
425: command.
426: .Ar path
427: may contain
428: .Xr glob 3
429: characters and may match multiple files.
1.3 deraadt 430: .It Ic lmkdir Ar path
1.1 djm 431: Create local directory specified by
1.3 deraadt 432: .Ar path .
1.88 djm 433: .It Xo Ic ln
434: .Op Fl s
435: .Ar oldpath
436: .Ar newpath
437: .Xc
438: Create a link from
1.12 djm 439: .Ar oldpath
440: to
441: .Ar newpath .
1.88 djm 442: If the
443: .Fl s
444: flag is specified the created link is a symbolic link, otherwise it is
445: a hard link.
1.3 deraadt 446: .It Ic lpwd
447: Print local working directory.
1.36 djm 448: .It Xo Ic ls
1.82 jmc 449: .Op Fl 1afhlnrSt
1.36 djm 450: .Op Ar path
451: .Xc
1.60 jaredy 452: Display a remote directory listing of either
1.1 djm 453: .Ar path
1.60 jaredy 454: or the current directory if
1.5 stevesk 455: .Ar path
1.44 jmc 456: is not specified.
1.60 jaredy 457: .Ar path
458: may contain
459: .Xr glob 3
460: characters and may match multiple files.
461: .Pp
462: The following flags are recognized and alter the behaviour of
463: .Ic ls
464: accordingly:
465: .Bl -tag -width Ds
466: .It Fl 1
467: Produce single columnar output.
468: .It Fl a
469: List files beginning with a dot
470: .Pq Sq \&. .
471: .It Fl f
472: Do not sort the listing.
473: The default sort order is lexicographical.
1.81 djm 474: .It Fl h
475: When used with a long format option, use unit suffixes: Byte, Kilobyte,
476: Megabyte, Gigabyte, Terabyte, Petabyte, and Exabyte in order to reduce
477: the number of digits to four or fewer using powers of 2 for sizes (K=1024,
478: M=1048576, etc.).
1.82 jmc 479: .It Fl l
480: Display additional details including permissions
481: and ownership information.
1.60 jaredy 482: .It Fl n
483: Produce a long listing with user and group information presented
1.56 djm 484: numerically.
1.60 jaredy 485: .It Fl r
486: Reverse the sort order of the listing.
487: .It Fl S
488: Sort the listing by file size.
489: .It Fl t
490: Sort the listing by last modification time.
491: .El
1.3 deraadt 492: .It Ic lumask Ar umask
1.21 itojun 493: Set local umask to
1.3 deraadt 494: .Ar umask .
495: .It Ic mkdir Ar path
1.1 djm 496: Create remote directory specified by
1.3 deraadt 497: .Ar path .
1.40 fgsch 498: .It Ic progress
499: Toggle display of progress meter.
1.7 djm 500: .It Xo Ic put
1.98 logan 501: .Op Fl afPpr
1.7 djm 502: .Ar local-path
1.37 djm 503: .Op Ar remote-path
1.7 djm 504: .Xc
1.1 djm 505: Upload
1.5 stevesk 506: .Ar local-path
1.44 jmc 507: and store it on the remote machine.
508: If the remote path name is not specified, it is given the same name it has
509: on the local machine.
1.60 jaredy 510: .Ar local-path
511: may contain
512: .Xr glob 3
513: characters and may match multiple files.
514: If it does and
515: .Ar remote-path
516: is specified, then
517: .Ar remote-path
518: must specify a directory.
1.95 djm 519: .Pp
520: If the
1.99 jmc 521: .Fl a
1.98 logan 522: flag is specified, then attempt to resume partial
523: transfers of existing files.
1.99 jmc 524: Note that resumption assumes that any partial copy of the remote file
1.98 logan 525: matches the local copy.
526: If the local file contents differ from the remote local copy then
527: the resultant file is likely to be corrupt.
528: .Pp
529: If the
1.95 djm 530: .Fl f
531: flag is specified, then a request will be sent to the server to call
532: .Xr fsync 2
533: after the file has been transferred.
534: Note that this is only supported by servers that implement
535: the "fsync@openssh.com" extension.
1.74 djm 536: .Pp
1.90 dtucker 537: If either the
1.7 djm 538: .Fl P
1.74 djm 539: or
540: .Fl p
541: flag is specified, then full file permissions and access times are
1.7 djm 542: copied too.
1.74 djm 543: .Pp
544: If the
545: .Fl r
546: flag is specified then directories will be copied recursively.
547: Note that
548: .Nm
549: does not follow symbolic links when performing recursive transfers.
1.3 deraadt 550: .It Ic pwd
551: Display remote working directory.
552: .It Ic quit
1.44 jmc 553: Quit
554: .Nm sftp .
1.92 djm 555: .It Xo Ic reget
556: .Op Fl Ppr
557: .Ar remote-path
558: .Op Ar local-path
559: .Xc
560: Resume download of
561: .Ar remote-path .
562: Equivalent to
563: .Ic get
564: with the
1.98 logan 565: .Fl a
566: flag set.
567: .It Xo Ic reput
568: .Op Fl Ppr
569: .Op Ar local-path
570: .Ar remote-path
571: .Xc
572: Resume upload of
573: .Op Ar local-path .
574: Equivalent to
575: .Ic put
1.99 jmc 576: with the
1.92 djm 577: .Fl a
578: flag set.
1.3 deraadt 579: .It Ic rename Ar oldpath Ar newpath
1.1 djm 580: Rename remote file from
581: .Ar oldpath
582: to
1.3 deraadt 583: .Ar newpath .
1.46 jmc 584: .It Ic rm Ar path
585: Delete remote file specified by
586: .Ar path .
1.3 deraadt 587: .It Ic rmdir Ar path
1.1 djm 588: Remove remote directory specified by
1.3 deraadt 589: .Ar path .
1.12 djm 590: .It Ic symlink Ar oldpath Ar newpath
1.21 itojun 591: Create a symbolic link from
1.12 djm 592: .Ar oldpath
593: to
594: .Ar newpath .
1.38 fgsch 595: .It Ic version
596: Display the
597: .Nm
598: protocol version.
1.69 sobrado 599: .It Ic \&! Ns Ar command
1.21 itojun 600: Execute
1.1 djm 601: .Ar command
1.3 deraadt 602: in local shell.
1.45 jmc 603: .It Ic \&!
1.3 deraadt 604: Escape to local shell.
1.45 jmc 605: .It Ic \&?
1.5 stevesk 606: Synonym for help.
1.4 itojun 607: .El
1.1 djm 608: .Sh SEE ALSO
1.46 jmc 609: .Xr ftp 1 ,
1.60 jaredy 610: .Xr ls 1 ,
1.17 markus 611: .Xr scp 1 ,
1.1 djm 612: .Xr ssh 1 ,
613: .Xr ssh-add 1 ,
614: .Xr ssh-keygen 1 ,
1.60 jaredy 615: .Xr glob 3 ,
1.35 stevesk 616: .Xr ssh_config 5 ,
1.17 markus 617: .Xr sftp-server 8 ,
618: .Xr sshd 8
619: .Rs
1.20 deraadt 620: .%A T. Ylonen
621: .%A S. Lehtinen
1.17 markus 622: .%T "SSH File Transfer Protocol"
623: .%N draft-ietf-secsh-filexfer-00.txt
624: .%D January 2001
625: .%O work in progress material
626: .Re
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