first set your locale to something unicode based: export LC_ALL=en_US.UTF-8
then try the simple script (from Ulrich Müller):
$ cat test.sh
shopt -s extglob
text="aaaäöü"
echo "${text} ${text//?aa} ${text//\aaa}"
with bash-4.1_p2, i get:
aaaäöü äöü äöü
but with bash-4.2_p8 ... 4.2_p24 (just what i have locally):
aaaäöü aaaäöü aaaäöü
seems like a bug to me
-mike
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