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.