This is GNU grep, the "fastest grep in the west" (we hope).  Allbugs reported in previous releases have been fixed.  Many exciting newbugs have probably been introduced in this revision.GNU grep is provided "as is" with no warranty.  The exact termsunder which you may use and (re)distribute this program are detailedin the GNU General Public License, in the file COPYING.GNU grep is based on a fast lazy-state deterministic matcher (abouttwice as fast as stock Unix egrep) hybridized with a Boyer-Moore-Gospersearch for a fixed string that eliminates impossible text from beingconsidered by the full regexp matcher without necessarily having tolook at every character.  The result is typically many times fasterthan Unix grep or egrep.  (Regular expressions containing backreferencingwill run more slowly, however.)See the files AUTHORS and THANKS for a list of authors and other contributors.See the file INSTALL for compilation and installation instructions.See the file NEWS for a description of major changes in this release.See the file TODO for ideas on how you could help us improve grep.Send bug reports to bug-gnu-utils@gnu.org.  Be sure toinclude the word "grep" in your Subject: header field.