Using the following files both of which had dos2unix run on them to be sure
there were no line-ending issues:
===== data.txt =======
abc
defghi
======================
===== filter.txt =====
abc
deghi
======================
These commands work as expected:
$ fgrep -f filter.txt data.txt
$ tail -1 data.txt | fgrep -wf filter.txt
But this command fails to return ghi:
$ fgrep -wf filter.txt data.txt
So it seems that after a match is discarded because it is not a full word
(due to the -w flag), subsequent full word matches are also discarded.
I've tested this with the grep 2.5.1 installed on a recent Gentoo GNU/Linux
machine and it behaves properly so I am guessing it might be a problem
specific to the cygwin port. I have not worked with Cygwin source yet, so
I'm reporting the problem, and if I finish with the work tasks that surfaced
the problem, I'll be happy to dig into the source and attempt to create a
patch, but I'm hoping there might be someone out there that can quickly
determine the problem and solution. :)
--
Daniel Einspanjer
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