SCP
Section: User Commands (1)
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BSD mandoc
NAME
scp
- OpenSSH secure file copy
SYNOPSIS
scp
[-
346ABCpqrTv [-
c cipher
]
]
[-
F ssh_config
]
[-
i identity_file
]
[-
J destination
]
[-
l limit
]
[-
o ssh_option
]
[-
P port
]
[-
S program
]
source ... target
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 a login session.
The scp protocol requires execution of the remote user's shell to perform
glob(3)
pattern matching.
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.
- -A
-
Allows forwarding of
ssh-agent1
to the remote system.
The default is not to forward 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).
- -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 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 described by
destination
and then establishing a TCP forwarding to the ultimate destination from
there.
Multiple jump hops may be specified separated by comma characters.
This is a shortcut to specify a
ProxyJump
configuration directive.
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_config5.
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_config5.
- 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
-
- 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
-
- 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 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 unexpected 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.
EXIT STATUS
Ex -std scp
SEE ALSO
sftp(1),
ssh(1),
ssh-add1,
ssh-agent1,
ssh-keygen1,
ssh_config5,
sshd(8)
HISTORY
scp
is based on the rcp program in
BSD source code from the Regents of the University of California.
AUTHORS
An Timo Rinne Aq Mt
tri@iki.fi
An Tatu Ylonen Aq Mt
ylo@cs.hut.fi