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Re: [Bash 4.4.5] Variable indirection, error on empty variable
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From: |
Eduardo Bustamante |
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Subject: |
Re: [Bash 4.4.5] Variable indirection, error on empty variable |
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Date: |
Sun, 27 Nov 2016 12:16:59 -0600 |
This change of behavior is the result of a bug fix for
http://lists.gnu.org/archive/html/bug-bash/2015-08/msg00058.html,
introduced in the following commit
http://git.savannah.gnu.org/cgit/bash.git/commit/?id=f2d7e1a3bcbdec7ef09db71779d800237fbc58bb
(read the changelog in CWRU/CWRU.chlog)
A couple of things here though:
1. The error is a non-fatal error
2. It is indeed an error to attempt to perform indirection on an empty
or unset parameter. There is no good reason to revert the fix,
considering that you were relying on unspecified behavior.