NAME¶
scp —
secure copy (remote file copy
program)
SYNOPSIS¶
scp |
[-12346BCpqrv]
[-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.
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.
- -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.
- -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
public key 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
-
- CanonicalDomains
-
- CanonicalizeFallbackLocal
-
- CanonicalizeHostname
-
- CanonicalizeMaxDots
-
- CanonicalizePermittedCNAMEs
-
- ChallengeResponseAuthentication
-
- CheckHostIP
-
- Cipher
-
- Ciphers
-
- Compression
-
- CompressionLevel
-
- ConnectionAttempts
-
- ConnectTimeout
-
- ControlMaster
-
- ControlPath
-
- ControlPersist
-
- GlobalKnownHostsFile
-
- GSSAPIAuthentication
-
- GSSAPIDelegateCredentials
-
- HashKnownHosts
-
- Host
-
- HostbasedAuthentication
-
- HostKeyAlgorithms
-
- HostKeyAlias
-
- HostName
-
- IdentityFile
-
- IdentitiesOnly
-
- IPQoS
-
- KbdInteractiveAuthentication
-
- KbdInteractiveDevices
-
- KexAlgorithms
-
- LogLevel
-
- MACs
-
- NoHostAuthenticationForLocalhost
-
- NumberOfPasswordPrompts
-
- PasswordAuthentication
-
- PKCS11Provider
-
- Port
-
- PreferredAuthentications
-
- Protocol
-
- ProxyCommand
-
- PubkeyAuthentication
-
- RekeyLimit
-
- RhostsRSAAuthentication
-
- RSAAuthentication
-
- SendEnv
-
- ServerAliveInterval
-
- ServerAliveCountMax
-
- 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. 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.
- -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¶
The
scp utility exits 0 on success, and >0 if an
error occurs.
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>