[SOLVED] Problem executing linux command remotely

Vanyel · 10-05-2010, 11:18 AM

If I type this manually on the command line, it works

Quote:

ssh -Y user@machine 'firefox &'

I ssh into the remote machine as the named user and pop an instance of firefox from that machine back to my own.

If I put the same thing into a shell script though, it fails.

Quote:

#!/bin/bash

ssh -Y user@machine 'firefox &'

I'm just left sitting at a command line on the remote machine.

I'm stumped. Why does the script fail and how can I make it work?

carltm · 10-05-2010, 09:14 PM

I'm not sure why it doesn't work, but I use this in a script:

Code:

ssh -Y $User@$Host "firefox -no-remote" "$@" >/dev/null &

Give this a try to see if the -no-remote and moving the
ampersand makes any difference.

Vanyel · 10-07-2010, 03:15 PM

Thanks for the response.

Don't entirely understand your snippet. What's the "$@" for?

- Van

sag47 · 10-07-2010, 05:08 PM

It handles any arguments you pass to your script (other commands). Google "bash arguments $@".

carltm · 10-08-2010, 06:51 PM

Yes, a lot of people know that "$*" contains the list of arguments entered
at the command line. However, $* will delimit the arguments with a space.
Using $@ you also get the original delimiters, which could be any whitespace
that by default is any space, tab or newline.

In most cases $* works as well as $@, but I like to pass the exact string
that was entered at the command line.