03-07-2008
whats wrong to scp from B to A then from A to C then rm A's copy?
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SCP(1) BSD General Commands Manual SCP(1)
NAME
scp -- secure copy (remote file copy program)
SYNOPSIS
scp [-pqrvBC46] [-F ssh_config] [-S program] [-P port] [-c cipher] [-i identity_file] [-o ssh_option] [[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 secu-
rity 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.
The options are as follows:
-c cipher
Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1).
-i identity_file
Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1).
-p Preserves modification times, access times, and modes from the original file.
-r Recursively copy entire directories.
-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.
-B Selects batch mode (prevents asking for passwords or passphrases).
-q Disables the progress meter.
-C Compression enable. Passes the -C flag to ssh(1) to enable compression.
-F ssh_config
Specifies an alternative per-user configuration file for ssh. This option is directly passed to ssh(1).
-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).
-S program
Name of program to use for the encrypted connection. The program must understand ssh(1) options.
-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 example, forcing the use of protocol version 1 is specified using scp -oProtocol=1.
-4 Forces scp to use IPv4 addresses only.
-6 Forces scp to use IPv6 addresses only.
DIAGNOSTICS
scp exits with 0 on success or >0 if an error occurred.
AUTHORS
Timo Rinne <tri@iki.fi> and Tatu Ylonen <ylo@cs.hut.fi>
HISTORY
scp is based on the rcp(1) program in BSD source code from the Regents of the University of California.
SEE ALSO
rcp(1), sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5), sshd(8)
BSD
September 25, 1999 BSD