grep bugs via Debian

[Ryan M. Golbeck]

Evenin',

I've been going through some old and new grep bugs that have been
reported via the Debian bug system.  For a full list of these bugs
please see [1].  All of these apply to grep version 2.5.1.

Here is a list of issues I've been looking at:

1) The documentation for the -v option does not talk about how the
   return status of the command is affected.
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=158134

2) fgrep -w fails when a subset follows a superset string
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195922

3) A missing fflush causes grep to fail give no output in some cases
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=153980

4) An assertion is triggered with the following grep:
      echo abc | egrep  '(.*)(.*)(.*)\3\2\1' 
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=186568

5) The --devices option does not work on FIFOs
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=198846

Thanks,
ryan

Footnotes: 
[1]  http://bugs.debian.org/cgi-bin/pkgreport.cgi?which=pkg&data=grep&archive=no