summaryrefslogtreecommitdiff
path: root/scp.1
blob: 3f5459089c3f0965e20b658ce7c574cd6ce5979a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
.\"
.\" scp.1
.\"
.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
.\"
.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
.\"                    All rights reserved
.\"
.\" Created: Sun May  7 00:14:37 1995 ylo
.\"
.\" $OpenBSD: scp.1,v 1.70 2016/06/29 17:14:28 jmc Exp $
.\"
.Dd $Mdocdate: June 29 2016 $
.Dt SCP 1
.Os
.Sh NAME
.Nm scp
.Nd secure copy (remote file copy program)
.Sh SYNOPSIS
.Nm scp
.Bk -words
.Op Fl 12346BCpqrv
.Op Fl c Ar cipher
.Op Fl F Ar ssh_config
.Op Fl i Ar identity_file
.Op Fl l Ar limit
.Op Fl o Ar ssh_option
.Op Fl P Ar port
.Op Fl S Ar program
.Sm off
.Oo
.Op Ar user No @
.Ar host1 :
.Oc Ar file1
.Sm on
.Ar ...
.Sm off
.Oo
.Op Ar user No @
.Ar host2 :
.Oc Ar file2
.Sm on
.Ek
.Sh DESCRIPTION
.Nm
copies files between hosts on a network.
It uses
.Xr ssh 1
for data transfer, and uses the same authentication and provides the
same security as
.Xr ssh 1 .
.Nm
will ask for passwords or passphrases if they are needed for
authentication.
.Pp
File names may contain a user and host specification to indicate
that the file is to be copied to/from that host.
Local file names can be made explicit using absolute or relative pathnames
to avoid
.Nm
treating file names containing
.Sq :\&
as host specifiers.
Copies between two remote hosts are also permitted.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl 1
Forces
.Nm
to use protocol 1.
.It Fl 2
Forces
.Nm
to use protocol 2.
.It Fl 3
Copies between two remote hosts are transferred through the local host.
Without this option the data is copied directly between the two remote
hosts.
Note that this option disables the progress meter.
.It Fl 4
Forces
.Nm
to use IPv4 addresses only.
.It Fl 6
Forces
.Nm
to use IPv6 addresses only.
.It Fl B
Selects batch mode (prevents asking for passwords or passphrases).
.It Fl C
Compression enable.
Passes the
.Fl C
flag to
.Xr ssh 1
to enable compression.
.It Fl c Ar cipher
Selects the cipher to use for encrypting the data transfer.
This option is directly passed to
.Xr ssh 1 .
.It Fl F Ar ssh_config
Specifies an alternative
per-user configuration file for
.Nm ssh .
This option is directly passed to
.Xr ssh 1 .
.It Fl i Ar identity_file
Selects the file from which the identity (private key) for public key
authentication is read.
This option is directly passed to
.Xr ssh 1 .
.It Fl l Ar limit
Limits the used bandwidth, specified in Kbit/s.
.It Fl o Ar ssh_option
Can be used to pass options to
.Nm ssh
in the format used in
.Xr ssh_config 5 .
This is useful for specifying options
for which there is no separate
.Nm scp
command-line flag.
For full details of the options listed below, and their possible values, see
.Xr ssh_config 5 .
.Pp
.Bl -tag -width Ds -offset indent -compact
.It AddressFamily
.It BatchMode
.It BindAddress
.It CanonicalDomains
.It CanonicalizeFallbackLocal
.It CanonicalizeHostname
.It CanonicalizeMaxDots
.It CanonicalizePermittedCNAMEs
.It CertificateFile
.It ChallengeResponseAuthentication
.It CheckHostIP
.It Cipher
.It Ciphers
.It Compression
.It CompressionLevel
.It ConnectionAttempts
.It ConnectTimeout
.It ControlMaster
.It ControlPath
.It ControlPersist
.It GlobalKnownHostsFile
.It GSSAPIAuthentication
.It GSSAPIDelegateCredentials
.It HashKnownHosts
.It Host
.It HostbasedAuthentication
.It HostbasedKeyTypes
.It HostKeyAlgorithms
.It HostKeyAlias
.It HostName
.It IdentitiesOnly
.It IdentityAgent
.It IdentityFile
.It IPQoS
.It KbdInteractiveAuthentication
.It KbdInteractiveDevices
.It KexAlgorithms
.It LogLevel
.It MACs
.It NoHostAuthenticationForLocalhost
.It NumberOfPasswordPrompts
.It PasswordAuthentication
.It PKCS11Provider
.It Port
.It PreferredAuthentications
.It Protocol
.It ProxyCommand
.It PubkeyAcceptedKeyTypes
.It PubkeyAuthentication
.It RekeyLimit
.It RhostsRSAAuthentication
.It RSAAuthentication
.It SendEnv
.It ServerAliveInterval
.It ServerAliveCountMax
.It StrictHostKeyChecking
.It TCPKeepAlive
.It UpdateHostKeys
.It UsePrivilegedPort
.It User
.It UserKnownHostsFile
.It VerifyHostKeyDNS
.El
.It Fl P Ar port
Specifies the port to connect to on the remote host.
Note that this option is written with a capital
.Sq P ,
because
.Fl p
is already reserved for preserving the times and modes of the file.
.It Fl p
Preserves modification times, access times, and modes from the
original file.
.It Fl q
Quiet mode: disables the progress meter as well as warning and diagnostic
messages from
.Xr ssh 1 .
.It Fl r
Recursively copy entire directories.
Note that
.Nm
follows symbolic links encountered in the tree traversal.
.It Fl S Ar program
Name of
.Ar program
to use for the encrypted connection.
The program must understand
.Xr ssh 1
options.
.It Fl v
Verbose mode.
Causes
.Nm
and
.Xr ssh 1
to print debugging messages about their progress.
This is helpful in
debugging connection, authentication, and configuration problems.
.El
.Sh EXIT STATUS
.Ex -std scp
.Sh SEE ALSO
.Xr sftp 1 ,
.Xr ssh 1 ,
.Xr ssh-add 1 ,
.Xr ssh-agent 1 ,
.Xr ssh-keygen 1 ,
.Xr ssh_config 5 ,
.Xr sshd 8
.Sh HISTORY
.Nm
is based on the rcp program in
.Bx
source code from the Regents of the University of California.
.Sh AUTHORS
.An Timo Rinne Aq Mt tri@iki.fi
.An Tatu Ylonen Aq Mt ylo@cs.hut.fi