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bug#35159: Bug in grep -e (GNU grep 2.51)

From: Andrew Browne
Subject: bug#35159: Bug in grep -e (GNU grep 2.51)
Date: Fri, 5 Apr 2019 13:18:08 +0000


I am using GNU grep 2.5.1, so maybe this has been fixed by now.

Bug: 'grep -e <pattern1> -e <pattern2> <file>' sometimes doesn't show all of 
the matches for one pattern.
Example: 'grep -e blah -e stuff <file>' finds all "blah", but only some of 
"stuff", when <file> contains lots of "blah" and only a few "stuff" mixed in.

As an alternative that works, I used 'grep -E '<pattern1>|<patter2>' <file>'

Andrew Browne

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