The
utility copies its standard input to the remote command, the standard
output of the remote command to its standard output, and the
standard error of the remote command to its standard error.
Interrupt, quit and terminate signals are propagated to the remote
command;
normally terminates when the remote command does.
The options are as follows:
-4
Use IPv4 addresses only.
-6
Use IPv6 addresses only.
-d
Turn on socket debugging (using
setsockopt(2))
on the
TCP
sockets used for communication with the remote host.
-l username
Allow the remote
username
to be specified.
By default, the remote username is the same as the local username.
Authorization is determined
as in
rlogin(1).
-n
Redirect input from the special device
/dev/null
(see the
Sx BUGS
section of this manual page).
-t timeout
Allow a
timeout
to be specified (in seconds).
If no
data is sent or received in this time,
will exit.
If no
command
is specified, you will be logged in on the remote host using
rlogin(1).
Shell metacharacters which are not quoted are interpreted on local machine,
while quoted metacharacters are interpreted on the remote machine.
For example, the command
rsh otherhost cat remotefile >> localfile
appends the remote file
remotefile
to the local file
localfile
while
If you are using
csh(1)
and put a
in the background without redirecting its input away from the terminal,
it will block even if no reads are posted by the remote command.
If no input is desired you should redirect the input of
to
/dev/null
using the
-n
option.
You cannot run an interactive command
(like
ee(1)
or
vi(1))
using
;
use
rlogin(1)
instead.
Stop signals stop the local
process only; this is arguably wrong, but currently hard to fix for reasons
too complicated to explain here.