topic Re: executing a function by remsh in Operating System - Linux

executing a function by remsh

Maciej Szewczykowski — Thu, 17 Jul 2003 06:27:36 GMT

hi all,
i have the following question: there is a script i wrote and within it there's a function defined. i'd like this function to be executed on remote host using 'remsh' command. is this possible? do i need to apply a special -option while doing 'remsh'? (the function mentioned is supposed to read folder names within a certain directory, then 'read' output is stored as variable).
thank you in advance.

Re: executing a function by remsh

Claudio Cilloni — Thu, 17 Jul 2003 08:58:53 GMT

I think you should write a script containing the function code, copy this script to the remote machine and run it using remsh.

Alternatively (but I'm not so sure here), you can use remsh to run the shell interpreter (/bin/sh or whatever it is) and send the function/script code to interpreter's stdin. I think that remsh could pass its own stdin to the stdin of the command executed on the remote machine; but exactly I don't know how.

hth
Claudio

P.S.: aren't you speaking about HPUX? I haven't found remsh in my linux box...

Re: executing a function by remsh

Sergejs Svitnevs — Thu, 17 Jul 2003 10:38:58 GMT

try something like this:

script1:
...
STATUS=`remsh REMOTE_HOST "script2"`
if [ $STATUS -eq 0 ]
then
echo "Success"
else
echo "Fail"
fi
...

script2:
...
if [ $? -eq 0 ] # or something else to give back the exit-status of script2
then
echo 0
else
echo 1
fi
exit

Regards,
Sergejs

Re: executing a function by remsh

Jerome Henry — Thu, 17 Jul 2003 10:59:23 GMT

And, adding to Claudio's tip, remsh in Linux box is rsh command (man rsh), but ssh is much prefered most of the time as rsh is said to be weak as far as security is concerned...

J

Re: executing a function by remsh

Caesar_3 — Thu, 17 Jul 2003 20:02:23 GMT

Hello!

You need that this script will be on the other
machine so you can before rsh made the rcp
for the script and then made rsh

Caesar

Re: executing a function by remsh

Jairo Campana — Fri, 18 Jul 2003 14:19:14 GMT

also you can use more security with
openssh - the scp
srs - the srsclient
http://www-it.desy.de/support/help/uco_documentation/sshhowto.html