Shell Script to shutdown network computers?

Brnzwngs · 09-11-2005, 06:19 AM

Hey guys, I am attempting to make a shell script called shutemdown that would shutdown all the computers on my network...but I have no clue how to do that yet haha. Any suggestions? The only idea that I have come up with so far is to ssh into each computer and have shutdown -h now run. There was be a simple way.... Is there also any way to shutdown all computers including windows ones or would I only be able to shutdown linux computers? Thanks in advance!

acid_kewpie · 09-11-2005, 06:23 AM

you could use rexec to do this, but personally i'd suggest using ssh as you have already speculated. it will (presumably) already be running unlike rexecd and nice and secure. just run "ssh hostname poweroff" for each hostname (on a loop) using rsa or dsa shared key authentication, job's a good 'un.

Brnzwngs · 09-11-2005, 06:35 AM

I'm still really new to this so sorry for the really basic questions here:

What is rexec?

All that I would have to do is 'ssh computer poweroff'? I would still need to replace computer with the computer's hostname....

Thank you for your help!

acid_kewpie · 09-11-2005, 07:48 AM

rexec (as any online documentation would tell you) is a remote execution program. to run programs on a remote machine. there's not necessarily a need for a specific server to run just for that, as ssh can do it too.

and yes, unless your server is psychic, you'd need to replace the hostname each time ;-)

Brnzwngs · 09-11-2005, 09:41 AM

Haha thanks so much! I got the script working mainly, but it makes me type the password for each logon....how can I put the password into the ssh root@x.x.x.x poweroff command?

acid_kewpie · 09-11-2005, 10:28 AM

i already said... use shared keys.

acid_kewpie · 09-11-2005, 10:28 AM

http://www.linuxquestions.org/questi...ticle&artid=79