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Re: Question about testing with variable operators

From: Chet Ramey
Subject: Re: Question about testing with variable operators
Date: Sun, 12 Jun 2011 22:15:00 -0400
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On 6/10/11 11:44 AM, Steven W. Orr wrote:

> As a work around, I can use eval or the builtin test, but my question is
> this: Is this a bug or is there a reason that it should work for arithmetic
> but not for the test [[ operator?

It's not a bug.  The (( command is syntactic sugar: (( ...)) is exactly
the same as let "...", with the expansions and evaluation ordering that

The [[ compound command is part of the shell language, and the operators
must be available to the parser when the command is read.


``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/

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