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To: Damian Gerow <dgerow@afflictions.org>
References: <20050725003238.GD2461@afflictions.org>
From: garys@opusnet.com (Gary W. Swearingen)
Date: Sun, 24 Jul 2005 22:48:16 -0700
In-Reply-To: <20050725003238.GD2461@afflictions.org> (Damian Gerow's message
	of "Sun, 24 Jul 2005 20:32:38 -0400")
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Cc: questions@freebsd.org
Subject: Re: Shell scripts, SSH sessions, and for loops, oh my!
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Damian Gerow <dgerow@afflictions.org> writes:

> I'm trying to write a shell script that runs a for loop in an SSH session.
> Simply, I'm trying to do this:
>
>     for HOST in `cat hostnames` ; do
> 	ssh ${HOST} "for PROCESS in 01 02 ; do echo '${PROCESS}' ; done"
>     done
>
> But because this is run in a script, that gets translated to:
>
>     for HOST in `cat hostnames` ; do
> 	ssh ${HOST} "for PROCESS in 01 02 ; do echo '' ; done"
>     done

Here's a few clues (assuming you really want the single quotes in there):

echo "THIS is SHELL: '\$SHELL'"
echo "THIS is SHELL: '"'$SHELL'"'"
echo 'THIS is SHELL: '\''$SHELL'\'

which all give

THIS is SHELL: '$SHELL'