The scp utility 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.
Any file name may contain a host and user specification to indicate that the file is to be copied to/from that host. Copies between two remote hosts are permitted.
OPTIONS
The following options are supported:
-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.)
-ccipher
Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1).
-C
Compression enable. Passes the -C flag to ssh(1) to enable compression.
-Fssh_config
Specifies an alternative per-user configuration file for ssh(1.).
-iidentity_file
Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1).
Preserves modification times, access times, and modes from the original file.
-Pport
Specifies the port to connect to on the remote host. Notice 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).
-q
Disables the progress meter.
-r
Recursively copies entire directories.
-Sprogram
Specifies the name of the 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.
OPERANDS
The following operands are supported:
host1, host2,...
The name(s) of the host from or to which the file is to be copied.
file1, file2,...
The file(s) to be copied.
EXIT STATUS
The following exit values are returned:
0
Successful completion.
1
An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
Generally, use of scp with password or keyboard-interactive authentication method and two remote hosts does not work. It does work with either the pubkey, hostbased or gssapi-keyex authentication method. For the pubkey authentication method, either private keys not protected by a passphrase, or an explicit ssh agent forwarding have to be used. The gssapi-keyex authentication method works with the kerberos_v5 GSS-API mechanism, but only
if the GSSAPIDelegateCredentials option is enabled.