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| 1 | This is GNU grep, the "fastest grep in the west" (we hope). All
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| 2 | bugs reported in previous releases have been fixed. Many exciting new
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| 3 | bugs have probably been introduced in this revision.
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| 4 |
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| 5 | GNU grep is provided "as is" with no warranty. The exact terms
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| 6 | under which you may use and (re)distribute this program are detailed
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| 7 | in the GNU General Public License, in the file COPYING.
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| 8 |
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| 9 | GNU grep is based on a fast lazy-state deterministic matcher (about
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| 10 | twice as fast as stock Unix egrep) hybridized with a Boyer-Moore-Gosper
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| 11 | search for a fixed string that eliminates impossible text from being
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| 12 | considered by the full regexp matcher without necessarily having to
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| 13 | look at every character. The result is typically many times faster
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| 14 | than Unix grep or egrep. (Regular expressions containing backreferencing
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| 15 | will run more slowly, however.)
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| 16 |
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| 17 | See the files AUTHORS and THANKS for a list of authors and other contributors.
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| 18 |
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| 19 | See the file INSTALL for compilation and installation instructions.
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| 20 |
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| 21 | See the file NEWS for a description of major changes in this release.
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| 22 |
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| 23 | See the file TODO for ideas on how you could help us improve grep.
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| 24 |
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| 25 | Send bug reports to bug-grep@gnu.org.
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