Public bug reported:
Binary package hint: grep
grep incorrectly ignores case in a case sensitive search. Here's an example:
18> echo Abcde | grep -E '^[a-e]'
Abcde
19> echo Abcde | grep -E '^[abcde]'
20>
In commands 18 and 19, the regular expressions are equivalent, but in
command 18, the search is treated as a case insensitive search.
This error occurs in grep 2.6.3, but appears to have been fixed in 2.8
(I downloaded 2.8 from the GNU project and compiled it). However, even
the latest release ("natty narwhal") still uses grep 2.6.3 and thus has
the error.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: grep 2.6.3-3
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
Date: Sat Jun 18 09:04:19 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/usr/bin/tcsh
SourcePackage: grep
** Affects: grep (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
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https://bugs.launchpad.net/bugs/799181
Title:
grep incorrectly ignores case sensitivity in search
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