Aristotle,
BUU and I discussed this over in #perl independent of these posts. I understand what his version is doing but I think that is the "wrong" thing to do. 
$ FOO="asdf"
$ BAR="$FOO you"
$ echo $BAR
asdf you
$ FOO=123
$ echo $BAR
asdf you

[download]
There is only one level of expansion in environmental variables so I would assume that is what is intended for this script. I did make the caveat that it was fragile with regards to the assumptions I made and that it would have to be modified accordingly.

Cheers - L~R

In reply to Re^5: printing enviroment vars from regex by Limbic~Region
in thread printing enviroment vars from regex by RnC

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