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Re: "$@" vs. nounset
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From: |
Chet Ramey |
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Subject: |
Re: "$@" vs. nounset |
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Date: |
Tue, 30 Jun 2009 08:32:16 -0400 |
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User-agent: |
Thunderbird 2.0.0.22 (Macintosh/20090605) |
Yang Zhang wrote:
> (IIRC, in bash, variables set to
> empty arrays and unset variables are the same).
In the shell, a variable is not set until it has been assigned a value.
An array variable is not set unless one of its indices has been assigned
a value.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/