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.
- -k
-
The
-k option causes
rsh to obtain tickets for the remote host in
realm instead of the remote host's realm as determined by
krb_realmofhost(3).
- -l
-
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.
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).
- -x
-
The
-x option turns on
DES encryption for all data exchange.
This may introduce a significant delay in response time.
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.
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.