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zgrep(1)                                                              zgrep(1)




NAME

       zgrep - search possibly compressed files for a regular expression


SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...


DESCRIPTION

       Zgrep  invokes grep on compressed or gzipped files.  All options speci-
       fied are passed directly to grep.  If no file is  specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise
       the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep pro-
       gram to be invoked.


EXIT STATUS

       Exit status is 0 for a match, 1 for no matches, and 2 if trouble.


BUGS

       The  following  grep options are not supported: --dereference-recursive
       (-R), --directories  (-d),  --exclude,  --exclude-from,  --exclude-dir,
       --include, --null (-Z), --null-data (-z), and --recursive (-r).


AUTHOR

       Charles Levert (charles@comm.polymtl.ca)


SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)



                                                                      zgrep(1)

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