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Re: Why if test "xSTRING1= "xSTRING2" (the 'x') ?
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From: |
Andreas Schwab |
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Subject: |
Re: Why if test "xSTRING1= "xSTRING2" (the 'x') ? |
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Date: |
Mon, 26 Mar 2007 15:56:12 +0200 |
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User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.91 (gnu/linux) |
Eric Blake <address@hidden> writes:
> According to Jules Colding on 3/26/2007 7:10 AM:
>> if test "xSTRING1" = "xSTRING2"; then
>> else
>> fi
>>
>> Probably something entirely fundamental that I just forgot...
>
> Portability. Suppose STRING1 is '(' and STRING2 is ')'. Then 'test "x("
> = "x)"' is false, while 'test ( = )' is true.
Note that POSIX mandates that the latter is false as well. May not matter
much, since there are many broken implementations out there.
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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