Provided by: zutils_1.7-1_amd64 bug


       zgrep - search compressed files for a regular expression


       zgrep [options] <pattern> [files]


       Zgrep is a front end to the grep program that allows transparent search on any combination
       of compressed and uncompressed files. If any given file is  compressed,  its  decompressed
       content is used. If a given file does not exist, and its name does not end with one of the
       known extensions, zgrep tries the compressed file names  corresponding  to  the  supported

       If  no  files are specified, or if a file is specified as '-', data are read from standard
       input, decompressed if needed, and fed to grep. Data read from standard input must  be  of
       the same type; all uncompressed or all in the same compression format.

       The supported formats are bzip2, gzip, lzip and xz.

       Exit status is 0 if match, 1 if no match, 2 if trouble.


       --help display this help and exit

       -V, --version
              output version information and exit

       -a, --text
              treat all files as text

       -A, --after-context=<n>
              print <n> lines of trailing context

       -b, --byte-offset
              print the byte offset of each line

       -B, --before-context=<n>
              print <n> lines of leading context

       -c, --count
              only print a count of matching lines per file

       -C, --context=<n>
              print <n> lines of output context

              show matched strings in color

       -e, --regexp=<pattern>
              use <pattern> as the pattern to match

       -E, --extended-regexp
              <pattern> is an extended regular expression

       -f, --file=<file>
              obtain patterns from <file>

       -F, --fixed-strings
              <pattern> is a set of newline-separated strings

       -h, --no-filename
              suppress the prefixing filename on output

       -H, --with-filename
              print the filename for each match

       -i, --ignore-case
              ignore case distinctions

       -I     ignore binary files

       -l, --files-with-matches
              only print names of files containing matches

       -L, --files-without-match
              only print names of files containing no matches

       -m, --max-count=<n>
              stop after <n> matches

       -M, --format=<list>
              process only the formats in <list>

       -n, --line-number
              print the line number of each line

       -N, --no-rcfile
              don't read runtime configuration file

       -o, --only-matching
              show only the part of a line matching <pattern>

       -O, --force-format=<fmt>
              force given format (bz2, gz, lz, xz)

       -q, --quiet
              suppress all messages

       -r, --recursive
              operate recursively on directories

       -s, --no-messages
              suppress error messages

       -v, --invert-match
              select non-matching lines

              verbose mode (show error messages)

       -w, --word-regexp
              match only whole words

       -x, --line-regexp
              match only whole lines

              set compressor and options for bzip2 format

              set compressor and options for gzip format

              set compressor and options for lzip format

              set compressor and options for xz format

       Numbers may be followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M =
       10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...


       Report bugs to
       Zutils home page:


       Copyright © 2018  Antonio  Diaz  Diaz.   License  GPLv2+:  GNU  GPL  version  2  or  later
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY,
       to the extent permitted by law.