URL:
<http://savannah.gnu.org/bugs/?27031>
Summary: grep -w Operates on word level and crashes for LANG
!= C
Project: grep
Submitted by: themadsens
Submitted on: Wed 15 Jul 2009 07:41:43 AM GMT
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
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Details:
Using the -w option causes grep to select its output on word level rather
than causing the match engine to work on word level. Also it seems that
mathces in the fist line causes crashes. LANG=C fixes all this.
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2'
the quick brown fox jumped over the lazy dog
line 2
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | grep -w
line
line$>
$>
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | grep -v
-w line
the quick brown fox jumped over the lazy dog
2
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | grep -w
fox
fox$>
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | grep -v
-w fox
Segmentation fault
$>
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | LANG=C
grep -v -w fox
line 2
$> echo -e 'the quick brown fox jumped over the lazy dog\nline 2' | LANG=C
grep -w fox
the quick brown fox jumped over the lazy dog
$>
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