1.\" 2.\" scp.1 3.\" 4.\" Author: Tatu Ylonen <ylo@cs.hut.fi> 5.\" 6.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 7.\" All rights reserved 8.\" 9.\" Created: Sun May 7 00:14:37 1995 ylo 10.\" 11.\" $OpenBSD: scp.1,v 1.80 2018/07/19 10:28:47 dtucker Exp $ 12.\" 13.Dd $Mdocdate: July 19 2018 $ 14.Dt SCP 1 15.Os 16.Sh NAME 17.Nm scp 18.Nd secure copy (remote file copy program) 19.Sh SYNOPSIS 20.Nm scp 21.Op Fl 346BCpqrv 22.Op Fl c Ar cipher 23.Op Fl F Ar ssh_config 24.Op Fl i Ar identity_file 25.Op Fl l Ar limit 26.Op Fl o Ar ssh_option 27.Op Fl P Ar port 28.Op Fl S Ar program 29.Ar source ... target 30.Sh DESCRIPTION 31.Nm 32copies files between hosts on a network. 33It uses 34.Xr ssh 1 35for data transfer, and uses the same authentication and provides the 36same security as 37.Xr ssh 1 . 38.Nm 39will ask for passwords or passphrases if they are needed for 40authentication. 41.Pp 42The 43.Ar source 44and 45.Ar target 46may be specified as a local pathname, a remote host with optional path 47in the form 48.Sm off 49.Oo user @ Oc host : Op path , 50.Sm on 51or a URI in the form 52.Sm off 53.No scp:// Oo user @ Oc host Oo : port Oc Op / path . 54.Sm on 55Local file names can be made explicit using absolute or relative pathnames 56to avoid 57.Nm 58treating file names containing 59.Sq :\& 60as host specifiers. 61.Pp 62When copying between two remote hosts, if the URI format is used, a 63.Ar port 64may only be specified on the 65.Ar target 66if the 67.Fl 3 68option is used. 69.Pp 70The options are as follows: 71.Bl -tag -width Ds 72.It Fl 3 73Copies between two remote hosts are transferred through the local host. 74Without this option the data is copied directly between the two remote 75hosts. 76Note that this option disables the progress meter. 77.It Fl 4 78Forces 79.Nm 80to use IPv4 addresses only. 81.It Fl 6 82Forces 83.Nm 84to use IPv6 addresses only. 85.It Fl B 86Selects batch mode (prevents asking for passwords or passphrases). 87.It Fl C 88Compression enable. 89Passes the 90.Fl C 91flag to 92.Xr ssh 1 93to enable compression. 94.It Fl c Ar cipher 95Selects the cipher to use for encrypting the data transfer. 96This option is directly passed to 97.Xr ssh 1 . 98.It Fl F Ar ssh_config 99Specifies an alternative 100per-user configuration file for 101.Nm ssh . 102This option is directly passed to 103.Xr ssh 1 . 104.It Fl i Ar identity_file 105Selects the file from which the identity (private key) for public key 106authentication is read. 107This option is directly passed to 108.Xr ssh 1 . 109.It Fl l Ar limit 110Limits the used bandwidth, specified in Kbit/s. 111.It Fl o Ar ssh_option 112Can be used to pass options to 113.Nm ssh 114in the format used in 115.Xr ssh_config 5 . 116This is useful for specifying options 117for which there is no separate 118.Nm scp 119command-line flag. 120For full details of the options listed below, and their possible values, see 121.Xr ssh_config 5 . 122.Pp 123.Bl -tag -width Ds -offset indent -compact 124.It AddressFamily 125.It BatchMode 126.It BindAddress 127.It BindInterface 128.It CanonicalDomains 129.It CanonicalizeFallbackLocal 130.It CanonicalizeHostname 131.It CanonicalizeMaxDots 132.It CanonicalizePermittedCNAMEs 133.It CertificateFile 134.It ChallengeResponseAuthentication 135.It CheckHostIP 136.It Ciphers 137.It Compression 138.It ConnectionAttempts 139.It ConnectTimeout 140.It ControlMaster 141.It ControlPath 142.It ControlPersist 143.It GlobalKnownHostsFile 144.It GSSAPIAuthentication 145.It GSSAPIDelegateCredentials 146.It HashKnownHosts 147.It Host 148.It HostbasedAuthentication 149.It HostbasedKeyTypes 150.It HostKeyAlgorithms 151.It HostKeyAlias 152.It HostName 153.It IdentitiesOnly 154.It IdentityAgent 155.It IdentityFile 156.It IPQoS 157.It KbdInteractiveAuthentication 158.It KbdInteractiveDevices 159.It KexAlgorithms 160.It LogLevel 161.It MACs 162.It NoHostAuthenticationForLocalhost 163.It NumberOfPasswordPrompts 164.It PasswordAuthentication 165.It PKCS11Provider 166.It Port 167.It PreferredAuthentications 168.It ProxyCommand 169.It ProxyJump 170.It PubkeyAcceptedKeyTypes 171.It PubkeyAuthentication 172.It RekeyLimit 173.It SendEnv 174.It ServerAliveInterval 175.It ServerAliveCountMax 176.It SetEnv 177.It StrictHostKeyChecking 178.It TCPKeepAlive 179.It UpdateHostKeys 180.It User 181.It UserKnownHostsFile 182.It VerifyHostKeyDNS 183.El 184.It Fl P Ar port 185Specifies the port to connect to on the remote host. 186Note that this option is written with a capital 187.Sq P , 188because 189.Fl p 190is already reserved for preserving the times and modes of the file. 191.It Fl p 192Preserves modification times, access times, and modes from the 193original file. 194.It Fl q 195Quiet mode: disables the progress meter as well as warning and diagnostic 196messages from 197.Xr ssh 1 . 198.It Fl r 199Recursively copy entire directories. 200Note that 201.Nm 202follows symbolic links encountered in the tree traversal. 203.It Fl S Ar program 204Name of 205.Ar program 206to use for the encrypted connection. 207The program must understand 208.Xr ssh 1 209options. 210.It Fl v 211Verbose mode. 212Causes 213.Nm 214and 215.Xr ssh 1 216to print debugging messages about their progress. 217This is helpful in 218debugging connection, authentication, and configuration problems. 219.El 220.Sh EXIT STATUS 221.Ex -std scp 222.Sh SEE ALSO 223.Xr sftp 1 , 224.Xr ssh 1 , 225.Xr ssh-add 1 , 226.Xr ssh-agent 1 , 227.Xr ssh-keygen 1 , 228.Xr ssh_config 5 , 229.Xr sshd 8 230.Sh HISTORY 231.Nm 232is based on the rcp program in 233.Bx 234source code from the Regents of the University of California. 235.Sh AUTHORS 236.An Timo Rinne Aq Mt tri@iki.fi 237.An Tatu Ylonen Aq Mt ylo@cs.hut.fi 238