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Secure copy.
scp {{path/to/local_file}} {{remote_host}}:{{path/to/remote_file}}scp -P {{port}} {{path/to/local_file}} {{remote_host}}:{{path/to/remote_file}}scp {{remote_host}}:{{path/to/remote_file}} {{path/to/local_directory}}scp -r {{remote_host}}:{{path/to/remote_directory}} {{path/to/local_directory}}scp -3 {{host1}}:{{path/to/remote_file}} {{host2}}:{{path/to/remote_directory}}scp {{path/to/local_file}} {{remote_username}}@{{remote_host}}:{{path/to/remote_directory}}scp -i {{~/.ssh/private_key}} {{path/to/local_file}} {{remote_host}}:{{path/to/remote_file}}scp -J {{proxy_username}}@{{proxy_host}} {{path/to/local_file}} {{remote_host}}:{{path/to/remote_file}}SCP(1) General Commands Manual SCP(1) NAME scp — OpenSSH secure file copy SYNOPSIS scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config] [-i identity_file] [-J destination] [-l limit] [-o ssh_option] [-P port] [-S program] [-X sftp_option] source ... target DESCRIPTION scp copies files between hosts on a network. scp uses the SFTP protocol over a ssh(1) connection for data transfer, and uses the same au‐ thentication and provides the same security as a login session. 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 cannot be specified on the target if the -R 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, when us‐ ing the legacy SCP protocol (via the -O flag), this option selects batch mode for the second host as scp cannot ask for passwords or passphrases for both hosts. This mode is the default. -4 Forces scp to use IPv4 addresses only. -6 Forces scp to use IPv6 addresses only. -A Allows forwarding of ssh-agent(1) to the remote system. The default is not to for‐ ward an authentication agent. -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). -D sftp_server_path Connect directly to a local SFTP server program rather than a remote one via ssh(1). This option may be useful in debugging the client and server. -F ssh_config Specifies an alternative per-user configuration file for ssh. This option is di‐ rectly passed to ssh(1). -i identity_file Selects the file from which the identity (private key) for public 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 de‐ scribed by destination and then establishing a TCP forwarding to the ultimate desti‐ nation from there. Multiple jump hops may be specified separated by comma charac‐ ters. This is a shortcut to specify a ProxyJump configuration directive. This op‐ tion is directly passed to ssh(1). -l limit Limits the used bandwidth, specified in Kbit/s. -O Use the legacy SCP protocol for file transfers instead of the SFTP protocol. Forcing the use of the SCP protocol may be necessary for servers that do not implement SFTP, for backwards-compatibility for particular filename wildcard patterns and for expand‐ ing paths with a ‘~’ prefix for older SFTP servers. -o ssh_option Can be used to pass options to ssh in the format used in ssh_config(5). This is use‐ ful 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 CheckHostIP Ciphers Compression ConnectionAttempts ConnectTimeout ControlMaster ControlPath ControlPersist GlobalKnownHostsFile GSSAPIAuthentication GSSAPIDelegateCredentials HashKnownHosts Host HostbasedAcceptedAlgorithms HostbasedAuthentication HostKeyAlgorithms HostKeyAlias Hostname IdentitiesOnly IdentityAgent IdentityFile IPQoS KbdInteractiveAuthentication KbdInteractiveDevices KexAlgorithms KnownHostsCommand LogLevel MACs NoHostAuthenticationForLocalhost NumberOfPasswordPrompts PasswordAuthentication PKCS11Provider Port PreferredAuthentications ProxyCommand ProxyJump PubkeyAcceptedAlgorithms PubkeyAuthentication RekeyLimit RequiredRSASize 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 writ‐ ten with a capital ‘P’, because -p is already reserved for preserving the times and mode bits of the file. -p Preserves modification times, access times, and file mode bits from the source file. -q Quiet mode: disables the progress meter as well as warning and diagnostic messages from ssh(1). -R Copies between two remote hosts are performed by connecting to the origin host and executing scp there. This requires that scp running on the origin host can authenti‐ cate to the destination host without requiring a password. -r Recursively copy entire directories. Note that scp follows symbolic links encoun‐ tered in the tree traversal. -S program Name of program to use for the encrypted connection. The program 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 operating systems and shells interpret filename wildcards, these checks may cause wanted files to be rejected. This option disables these checks at the expense of fully trusting that the server will not send unex‐ pected filenames. -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. -X sftp_option Specify an option that controls aspects of SFTP protocol behaviour. The valid op‐ tions are: nrequests=value Controls how many concurrent SFTP read or write requests may be in progress at any point in time during a download or upload. By default 64 requests may be active concurrently. buffer=value Controls the maximum buffer size for a single SFTP read/write operation used during download or upload. By default a 32KB buffer is used. EXIT STATUS The scp utility exits 0 on success, and >0 if an error occurs. SEE ALSO sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5), sftp-server(8), sshd(8) HISTORY scp is based on the rcp program in BSD source code from the Regents of the University of Cal‐ ifornia. Since OpenSSH 9.0, scp has used the SFTP protocol for transfers by default. AUTHORS Timo Rinne <tri AT iki.fi> Tatu Ylonen <ylo AT cs.fi> CAVEATS The legacy SCP protocol (selected by the -O flag) requires execution of the remote user's shell to perform glob(3) pattern matching. This requires careful quoting of any characters that have special meaning to the remote shell, such as quote characters. Debian December 16, 2022 SCP(1)
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