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RSH(1) BSD General Commands Manual RSH(1) NAME rsh -- remote shell SYNOPSIS rsh [-46dn] [-l username] [-p port] host [command] rsh [-46dn] [-p port] 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: -4 Use IPv4 addresses only. -6 Use IPv6 addresses only. -d The -d option turns on socket debugging (using setsockopt(2)) on the TCP sockets used for communication with the remote host. -l username By default, the remote username is the same as the local username. The -l option or the username@host format allow the remote name to be specified. -n The -n option redirects input from the special device /dev/null (see the BUGS section of this manual page). -p port Uses the given port instead of the one assigned to the ser- vice "shell". May be given either as symbolic name or as number. If no command is given, note that rlogin(1) is started, which may need a different daemon (rlogind(8) in- stead of rshd(8)) running on the server; you want to pass the rshd(8) port number in that case. If no command is specified, you will be logged in on the remote host us- ing rlogin(1). Shell metacharacters which are not quoted are interpreted on local ma- chine, 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 rcmd(1), rlogin(1), rcmd(3), hosts.equiv(5), rhosts(5), environ(7) HISTORY The rsh command appeared in 4.2BSD. BUGS 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. BSD March 9, 2005 BSD
NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | HISTORY | BUGS
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