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 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, rsh 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