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Using unset to destroy array elements doesn't work with 'nullglob' set


From: Francis Moreau
Subject: Using unset to destroy array elements doesn't work with 'nullglob' set
Date: Fri, 5 Jun 2009 08:35:15 -0700 (PDT)
User-agent: G2/1.0

Hello,

My version of bash is "GNU bash, version 3.2.33(1)-release (x86_64-
redhat-linux-gnu)" running on a fedora 9.

Here's is a small script to show the bug:

#!/bin/bash

#shopt -s nullglob

foo[0]=0
unset foo[0]
echo address@hidden

When shopt line is commented then the element at index 0 is destroyed
and the echo doesn't output anything. However is a uncomment the shopt
line the element at index 0 is not destroyed anymore and the echo
output "0".

Thanks.


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