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Date: | Thu, 14 Feb 2002 17:29:05 +0200 (IST) |
From: | Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> |
X-Sender: | eliz AT is |
To: | Tim Van Holder <tim DOT van DOT holder AT pandora DOT be> |
cc: | djgpp-workers AT delorie DOT com |
Subject: | Re: Some small bash issues |
In-Reply-To: | <1013690570.30677.90.camel@bender.falconsoft.be> |
Message-ID: | <Pine.SUN.3.91.1020214172635.1382B-100000@is> |
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On 14 Feb 2002, Tim Van Holder wrote: > [tim AT bender] /home/tim>cat >fooscript <<\EOF > More>#! /bin/sh > More>echo $foo > More>EOF > [tim AT bender] /home/tim>foo=bar ./fooscript > bar > [tim AT bender] /home/tim>echo $foo > > [tim AT bender] /home/tim>cat >fooscript <<\EOF > More>#! /usr/bin/perl5 > More>print $ENV{"foo"} . "\n"; > More>EOF > [tim AT bender] /home/tim>foo=bar ./fooscript > bar > [tim AT bender] /home/tim>foo=bar perl -e 'print $ENV{"foo"} . "\n";' > bar > [tim AT bender] /home/tim>echo $foo > > [tim AT bender] /home/tim>foo=bar perl -e 'print $ENV{"foo"} . "\n";' > bar > > So running perl DOES set foo; running echo doesn't. Yes, but that's a different issue, I think: what I was talking about is whether foo=bar is in effect for the duration of the single command after "foo=bar". You are talking, so it seems, about whether foo=bar stays in effect _after_ that command exits. I don't expect the latter to happen in a shell, but as for Perl, I don't know enough about its semantics to judge.
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