$Mdocdate: January 31 2008 $ 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] ... host2: [[user @]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.

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 scp treating file names containing `:' as host specifiers. Copies between two remote hosts are also permitted.

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
  HashKnownHosts
  Host
  HostbasedAuthentication
  HostKeyAlgorithms
  HostKeyAlias
  HostName
  IdentityFile
  IdentitiesOnly
  KbdInteractiveDevices
  LogLevel
  MACs
  NoHostAuthenticationForLocalhost
  NumberOfPasswordPrompts
  PasswordAuthentication
  Port
  PreferredAuthentications
  Protocol
  ProxyCommand
  PubkeyAuthentication
  RekeyLimit
  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
  Quiet mode: disables the progress meter as well as warning and diagnostic messages from ssh(1).

-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.

### 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>