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Re: unset FOO
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From: |
Eric Blake |
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Subject: |
Re: unset FOO |
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Date: |
Wed, 15 Oct 2008 06:50:10 -0600 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.17) Gecko/20080914 Thunderbird/2.0.0.17 Mnenhy/0.7.5.666 |
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According to Eric Blake on 10/14/2008 10:21 AM:
> But why waste the time going through a temporary variable, when you can use:
>
> test ${foo+set} = set && unset foo
To avoid syntax errors from test, this needs better quoting, as in either:
test x${foo+set} = xset && unset foo
test "${foo+set}" = set && unset foo
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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