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Subject: [Bug 256473] FreeBSD shells are case insensitive for character
ranges
Date: Tue, 08 Jun 2021 07:52:07 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256473
Stefan E=C3=9Fer <se@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Open
CC| |se@FreeBSD.org
--- Comment #1 from Stefan E=C3=9Fer <se@FreeBSD.org> ---
Please check your LANG (and possibly LC_CTYPE) setting.
There are many locales that do not follow the ASCII collating sequence A ..=
Z
followed by a .. z. Very common is a sequence of: A a B b ... Z z - and that
includes all lower case letters except z within the range [A-Z].
Try with LANG set to "C" whether this gives the expected result.
Shell scripts that depend on a specific collating sequence should always re=
set
LANG and LC_CTYPE to default values (e.g. LANG=3DC and LC_CTYPE unset).
Interactive shells should be able to support LC_CTYPE=3DC to set the collat=
ing
sequence independently of LANG, but in my tests this is implemented to
different degrees in different shells.
Some shells do not even respect the collating sequence specified by LANG, a=
nd
bash is the one that appears to ignore both LANG and LC_CTYPE and to always=
use
the ASCII collating sequence (or rather pure bytewise string comparison?).
The tcsh in FreeBSD uses only LANG and ignores LC_CTYPE to select the colla=
ting
sequence, btw.
--=20
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