OP needs to upgrade grep to the latest version. He is using 2.5.3, and latest version is 2.10. Release notes for 2.6: "This release fixes an unexpectedly lar

OP needs to upgrade grep to the latest version. He is using 2.5.3, and latest version is 2.10. Release notes for 2.6: "This release fixes an unexpectedly large number of flaws, from outright bugs (surprisingly many, considering this is "grep") to some occasionally debilitating performance problems." http://savannah.gnu.org/forum/forum.php?forum_id=6249 http://savannah.gnu.org/forum/forum.php?forum_id=6249