Bug 161700

Summary:	grep -Fw fails to match anything
Product:	[Fedora] Fedora	Reporter:	Jordan Russell <jr-redhatbugs2>
Component:	grep	Assignee:	Tim Waugh <twaugh>
Status:	CLOSED ERRATA	QA Contact:	Mike McLean <mikem>
Severity:	high	Docs Contact:
Priority:	medium
Version:	4
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-07-25 09:58:01 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jordan Russell 2005-06-26 01:21:57 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

Description of problem:
When I pass both the -F and -w options to grep, it never prints any matches and always returns 1.

This is a regression from previous releases of grep. The most recent grep package on RHEL3 (grep-2.5.1-24.4) does not exhibit this problem.

Version-Release number of selected component (if applicable):
grep-2.5.1-48

How reproducible:
Always

Steps to Reproduce:
Issue the following commands on Fedora Core 4:

# echo test > testfile
# grep -Fw test testfile
# echo $?
1

Actual Results:  Clearly testfile contains the word "test", but grep thinks it doesn't -- it outputs nothing and returns 1.

Expected Results:  The same commands on Red Hat Enterprise Linux 3 produce the correct results:

# echo test > testfile
# grep -Fw test testfile
test
# echo $?
0

Additional info:

In case it matters, my systems use LANG=en_US

Comment 1 Jordan Russell 2005-06-26 17:55:00 UTC

The bug appears to be dependent on the LANG setting.

On Fedora Core 4:

# LANG=en_US grep -Fw test testfile
# LANG=en_US.utf8 grep -Fw test testfile
test

On Red Hat Enterprise Linux 3 (grep-2.5.1-24.4):

# LANG=en_US grep -Fw test testfile
test
# LANG=en_US.utf8 grep -Fw test testfile
test

Comment 2 Tim Waugh 2005-06-27 08:17:31 UTC

Confirmed.

Comment 4 Tim Waugh 2005-06-27 11:33:03 UTC

Thanks for reporting this.  Fixed in CVS.

I will make an updated FC4 package to fix this.

Comment 5 Tim Waugh 2005-06-28 14:31:15 UTC

Please try out this updated package:

https://www.redhat.com/archives/fedora-test-list/2005-June/msg01097.html

Comment 6 Jordan Russell 2005-06-28 16:47:08 UTC

The new package fixes the original case, but it doesn't seem to help when the
word is present in the middle of a line:

# echo 'x test x' > testfile
# LANG=en_US grep -Fw test testfile
# LANG=en_US.utf8 grep -Fw test testfile
x test x

Comment 7 Tim Waugh 2005-06-28 22:41:20 UTC

Thanks for testing.  Please try out this updated package:

https://www.redhat.com/archives/fedora-test-list/2005-June/msg01106.html

Comment 9 Jordan Russell 2005-06-29 03:21:42 UTC

That version works correctly (at least in all my tests thus far).

Thanks.

Comment 10 Tim Waugh 2005-07-25 09:58:01 UTC

https://www.redhat.com/archives/fedora-announce-list/2005-July/msg00018.html