RSH(1) BSD General Commands Manual RSH(1)
rsh -- remote shell
rsh [-Kdnx] [-k realm] [-l username] host [command]
Rsh executes command on host.
Rsh 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; rsh normally terminates
when the remote command does. The options are as follows:
-K The -K option turns off all Kerberos authentication.
-d The -d option turns on socket debugging (using setsockopt(2)) on
the TCP sockets used for communication with the remote host.
-l By default, the remote username is the same as the local username.
The -l option allows the remote name to be specified. Kerberos
authentication is used, and authorization is determined as in
-n The -n option redirects input from the special device /dev/null
(see the BUGS section of this manual page).
If no command is specified, you will be logged in on the remote host
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
rsh otherhost cat remotefile ">>" other_remotefile
appends remotefile to other_remotefile.
rlogin(1), kerberos(3), krb_sendauth(3), krb_realmofhost(3)
The rsh command appeared in 4.2BSD.
If you are using csh(1) and put a rsh in the background without redirect-
ing 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 rsh to /dev/null using the -n option.
You cannot run an interactive command (like rogue(6) or vi(1)) using rsh;
use rlogin(1) instead.
Stop signals stop the local rsh process only; this is arguably wrong, but
currently hard to fix for reasons too complicated to explain here.
Linux NetKit (0.17) August 15, 1999 Linux NetKit (0.17)
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