[olug] conditional $PATH

[Vincent Raffensberger]

"After" is just an optional argument to make it add the path to the end
rather than the beginning of the variable.

This would add it to the end:
pathmunge /some/path after

BTW, this function is straight from a redhat's /etc/profile script.
It's handy and helps keep your PATH variable from having many duplicates
in it.

-----Original Message-----
From: olug-bounces at olug.org [mailto:olug-bounces at olug.org] On Behalf Of
Tim & Alethea Larson
Sent: Thursday, August 04, 2005 3:29 PM
To: Omaha Linux User Group
Subject: Re: [olug] conditional $PATH

Vincent Raffensberger wrote:
> Something like this would do the job in ~/.*profile:
> 
> pathmunge () {
>         if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
>            if [ "$2" = "after" ] ; then
>               PATH=$PATH:$1
>            else
>               PATH=$1:$PATH
>            fi
>         fi
> }

I see what this is trying to do, but I don't follow how it actually does
it.  I.e., where does "after" come from?

> if [ `id -g` = 1000 ]; then
>         pathmunge /some/path
>         pathmunge /some/other/path
> fi

Cool, this is what I needed.  I will probably use the -Gn flag instead
though.

Thanks,
Tim
--
Tim & Alethea
christtrek.org
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