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Erroneous claim in grep man page
From: |
Francis Litterio |
Subject: |
Erroneous claim in grep man page |
Date: |
Fri, 08 Aug 2008 10:38:35 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (windows-nt) |
The grep/egrep man page says this:
Grep understands two different versions of regular expression syntax:
"basic" and "extended." In GNU grep, there is no difference in
available functionality using either syntax. In other implementa-
tions, basic regular expressions are less powerful.
But I see this behavior with grep 2.5.1:
$ echo foobar | grep 'fo+bar'
$ echo foobar | egrep 'fo+bar'
foobar
So the claim in the man page that "there is no difference in available
functionality using either syntax", doesn't seem to be true.
--
Fran
- Erroneous claim in grep man page,
Francis Litterio <=