NAME

     rsh — remote shell

SYNOPSIS

     rsh [-Kdnx] [-k realm] [-l username] host [command]

DESCRIPTION

     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
           rlogin(1).

     -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 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

           rsh otherhost cat remotefile ">>" other_remotefile

     appends remotefile to other_remotefile.

FILES

     /etc/hosts

SEE ALSO

     rlogin(1), kerberos(3), krb_sendauth(3), krb_realmofhost(3)

HISTORY

     The rsh command appeared in 4.2BSD.

BUGS

     If you are using csh(1) and put a rsh 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 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.