blow(1) BSD General Commands Manual blow(1)NAME
suck, blow — transfer data over a TCP connection
SYNOPSIS
suck [-v] [-p port] [remote-ip]
blow [-v] [-p port] [remote-ip]
DESCRIPTION
Suck and blow are simple programs used to transfer data over a TCP con‐
nection. Blow is the originator of the data, which is read from standard
input, while suck is the recipient of the data, which is written to stan‐
dard output.
Either program may originate the TCP connection which is used for the
transfer; whichever program is supplied with the remote-ip argument will
be the originator. The other program is expected to have already been
started, with no remote-ip argument, causing it to await a connection
from the peer.
These programs are often useful in conjunction with archiving programs
such as tar(1).
The options are as follows:
-v Increased verbosity.
-p Specify an alternate TCP port to use. The default port is 6060.
EXAMPLES
To transfer the directory hierarchy mystuff from machine A to machine B,
first on machine B:
[machineB] $ suck | tar xvf -
and then on machine A:
[machineA] $ tar cvf - mystuff | blow machineB
If machine B was behind a firewall, you could do this instead:
[machineA] $ tar cvf - mystuff | blow
and then on machine B:
[machineB] $ suck machineA | tar xvf -
SEE ALSOcpio(1), tar(1)AUTHORS
Archie Cobbs ⟨archie@whistle.com⟩
4th Berkeley Distribution June 23, 2000 4th Berkeley Distribution
