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scp(1) |
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SCP(1) BSD General Commands Manual SCP(1)
NAME
scp — secure copy (remote file copy program)
SYNOPSIS
scp [−1246BCpqrv] [−c cipher] [−F ssh_config] [−i identity_file] [−l limit] [−o ssh_option] [−P port] [−S program] [
[user@]host1: ]file1 [...] [
[user@]host2: ]file2
DESCRIPTION
scp copies files between hosts on a network. It uses ssh(1) for data transfer, and uses the same authentication and provides the same security as ssh(1). Unlike rcp(1), scp will ask for passwords or passphrases if they are needed for authentication.
Any file name may contain a host and user specification to indicate that the file is to be copied to/from that host. Copies between two remote hosts are permitted.
When copying a source file to a target file which already exists, scp will replace the contents of the target file (keeping the inode).
If the target file does not yet exist, an empty file with the target file name is created, then filled with the source file contents. No attempt is made at "near-atomic" transfer using temporary files.
The options are as follows:
−1
Forces scp to use protocol 1.
−2
Forces scp to use protocol 2.
−4
Forces scp to use IPv4 addresses only.
−6
Forces scp to use IPv6 addresses only.
−B
Selects batch mode (prevents asking for passwords or passphrases).
−C
Compression enable. Passes the −C flag to ssh(1) to enable compression.
−c cipher
Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1).
−F ssh_config
Specifies an alternative per-user configuration file for ssh. This option is directly passed to ssh(1).
−i identity_file
Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1).
−l limit
Limits the used bandwidth, specified in Kbit/s.
−o ssh_option
Can be used to pass options to ssh in the format used in ssh_config(5). This is useful for specifying options for which there is no separate scp command-line flag. For full details of the options listed below, and their possible values, see ssh_config(5).
AddressFamily
BatchMode
BindAddress
ChallengeResponseAuthentication
CheckHostIP
Cipher
Ciphers
Compression
CompressionLevel
ConnectionAttempts
ConnectTimeout
ControlMaster
ControlPath
GlobalKnownHostsFile
GSSAPIAuthentication
GSSAPIDelegateCredentials
Host
HostbasedAuthentication
HostKeyAlgorithms
HostKeyAlias
HostName
IdentityFile
IdentitiesOnly
LogLevel
MACs
NoHostAuthenticationForLocalhost
NumberOfPasswordPrompts
PasswordAuthentication
Port
PreferredAuthentications
Protocol
ProxyCommand
PubkeyAuthentication
RhostsRSAAuthentication
RSAAuthentication
SendEnv
ServerAliveInterval
ServerAliveCountMax
SmartcardDevice
StrictHostKeyChecking
TCPKeepAlive
UsePrivilegedPort
User
UserKnownHostsFile
VerifyHostKeyDNS
−P port
Specifies the port to connect to on the remote host. Note that this option is written with a capital ’P’, because −p is already reserved for preserving the times and modes of the file in rcp(1).
−p
Preserves modification times, access times, and modes from the original file.
−q
Disables the progress meter.
−r
Recursively copy entire directories.
−S program
Name of program to use for the encrypted connection. The program must understand ssh(1) options.
−v
Verbose mode. Causes scp and ssh(1) to print debugging messages about their progress. This is helpful in debugging connection, authentication, and configuration problems.
DIAGNOSTICS
scp exits with 0 on success or >0 if an error occurred.
SEE ALSO
rcp(1), sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5), sshd(8)
HISTORY
scp is based on the rcp(1) program in BSD source code from the Regents of the University of California.
AUTHORS
Timo Rinne <tri@iki.fi>
Tatu Ylonen <ylo@cs.hut.fi>
BSD September 25, 1999 BSD
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scp(1) | |