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Re: How can I check an environment variable?
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From: |
Ralf Wildenhues |
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Subject: |
Re: How can I check an environment variable? |
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Date: |
Thu, 13 Aug 2009 07:59:37 +0200 |
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User-agent: |
Mutt/1.5.20 (2009-08-09) |
Hello David,
* Dr. David Kirkby wrote on Wed, Aug 12, 2009 at 11:18:29AM CEST:
> What's the best way to check if an environment variable is set?
if test "${var+set}" = set; then
echo "variable \$var is set to: $var"
fi
Cheers,
Ralf