helpThe GNU Bourne-Again SHell - Support: sr #108110, [bug] righthand of = or == in [[...


sr #108110: [bug] righthand of = or == in [[ ]] seems to do quote removal on expanded variables

Submitted by:  Michal Soltys <msoltyspl>
Submitted on:  Fri 17 Aug 2012 11:40:52 PM UTC  
Category: NonePriority: 5 - Normal
Severity: 3 - NormalStatus: None
Privacy: PublicAssigned to: None
Open/Closed: OpenOperating System: GNU/Linux

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Fri 24 Aug 2012 10:26:33 AM UTC, comment #1:

One correction: for == operator the behavior is fine (righthand is treated as a pattern and in such case backslash is removed), but for = it's still invalid.

Michal Soltys <msoltyspl>
Fri 17 Aug 2012 11:40:52 PM UTC, original submission:

Essentially, if someone does:

set -x
[[ $a = $a ]]

Then the result (as of 4.2.37) will be false (even though debug output shows expected evaluation). The only way to get true is to quote righthand $a (or both). If I'm not missing any subtlety - I think it's not how it should be - as it looks like quote removal is sneaking in at some point modifying effects of earlier expansions.

Michal Soltys <msoltyspl>


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