scp(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | SEE ALSO | HISTORY | AUTHORS | COLOPHON

SCP(1)                   BSD General Commands Manual                  SCP(1)

NAME         top

     scp — OpenSSH secure file copy

SYNOPSIS         top

     scp [-346BCpqrTv] [-c cipher] [-F ssh_config] [-i identity_file]
         [-J destination] [-l limit] [-o ssh_option] [-P port] [-S program]
         source ... target

DESCRIPTION         top

     scp copies files between hosts on a network.  It uses ssh(1) for data
     transfer, and uses the same authentication and provides the same secu‐
     rity as ssh(1).  scp will ask for passwords or passphrases if they are
     needed for authentication.

     The source and target may be specified as a local pathname, a remote
     host with optional path in the form [user@]host:[path], or a URI in the
     form scp://[user@]host[:port][/path].  Local file names can be made
     explicit using absolute or relative pathnames to avoid scp treating
     file names containing ‘:’ as host specifiers.

     When copying between two remote hosts, if the URI format is used, a
     port may only be specified on the target if the -3 option is used.

     The options are as follows:

     -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 and selects batch mode for the second host,
             since scp cannot ask for passwords or passphrases for both
             hosts.

     -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 pub‐
             lic key authentication is read.  This option is directly passed
             to ssh(1).

     -J destination
             Connect to the target host by first making an scp connection to
             the jump host described by destination and then establishing a
             TCP forwarding to the ultimate destination from there.  Multi‐
             ple jump hops may be specified separated by comma characters.
             This is a shortcut to specify a ProxyJump configuration direc‐
             tive.  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
                   BindInterface
                   CanonicalDomains
                   CanonicalizeFallbackLocal
                   CanonicalizeHostname
                   CanonicalizeMaxDots
                   CanonicalizePermittedCNAMEs
                   CASignatureAlgorithms
                   CertificateFile
                   ChallengeResponseAuthentication
                   CheckHostIP
                   Ciphers
                   Compression
                   ConnectionAttempts
                   ConnectTimeout
                   ControlMaster
                   ControlPath
                   ControlPersist
                   GlobalKnownHostsFile
                   GSSAPIAuthentication
                   GSSAPIDelegateCredentials
                   HashKnownHosts
                   Host
                   HostbasedAuthentication
                   HostbasedKeyTypes
                   HostKeyAlgorithms
                   HostKeyAlias
                   Hostname
                   IdentitiesOnly
                   IdentityAgent
                   IdentityFile
                   IPQoS
                   KbdInteractiveAuthentication
                   KbdInteractiveDevices
                   KexAlgorithms
                   LogLevel
                   MACs
                   NoHostAuthenticationForLocalhost
                   NumberOfPasswordPrompts
                   PasswordAuthentication
                   PKCS11Provider
                   Port
                   PreferredAuthentications
                   ProxyCommand
                   ProxyJump
                   PubkeyAcceptedKeyTypes
                   PubkeyAuthentication
                   RekeyLimit
                   SendEnv
                   ServerAliveInterval
                   ServerAliveCountMax
                   SetEnv
                   StrictHostKeyChecking
                   TCPKeepAlive
                   UpdateHostKeys
                   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.

     -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.  Note that scp follows
             symbolic links encountered in the tree traversal.

     -S program
             Name of program to use for the encrypted connection.  The pro‐
             gram must understand ssh(1) options.

     -T      Disable strict filename checking.  By default when copying
             files from a remote host to a local directory scp checks that
             the received filenames match those requested on the command-
             line to prevent the remote end from sending unexpected or
             unwanted files.  Because of differences in how various operat‐
             ing systems and shells interpret filename wildcards, these
             checks may cause wanted files to be rejected.  This option dis‐
             ables these checks at the expense of fully trusting that the
             server will not send unexpected filenames.

     -v      Verbose mode.  Causes scp and ssh(1) to print debugging mes‐
             sages about their progress.  This is helpful in debugging con‐
             nection, authentication, and configuration problems.

EXIT STATUS         top

     The scp utility exits 0 on success, and >0 if an error occurs.

SEE ALSO         top

     sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1),
     ssh_config(5), sshd(8)

HISTORY         top

     scp is based on the rcp program in BSD source code from the Regents of
     the University of California.

AUTHORS         top

     Timo Rinne <tri@iki.fi>
     Tatu Ylonen <ylo@cs.hut.fi>

COLOPHON         top

     This page is part of the openssh (Portable OpenSSH) project.  Informa‐
     tion about the project can be found at
     http://www.openssh.com/portable.html.  If you have a bug report for
     this manual page, see ⟨http://www.openssh.com/report.html⟩.  This page
     was obtained from the tarball openssh-8.3p1.tar.gz fetched from
     ⟨http://ftp.eu.openbsd.org/pub/OpenBSD/OpenSSH/portable/⟩ on
     2020-08-13.  If you discover any rendering problems in this HTML ver‐
     sion of the page, or you believe there is a better or more up-to-date
     source for the page, or you have corrections or improvements to the
     information in this COLOPHON (which is not part of the original manual
     page), send a mail to man-pages@man7.org

BSD                            April 30, 2020                            BSD