NAME

       xzgrep - search possibly-compressed files for patterns

SYNOPSIS

       xzgrep [option...]  [pattern_list] [file...]
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes  grep(1)  on uncompressed contents of files.  The formats of the files are
       determined from the filename suffixes.   Any  file  with  a  suffix  supported  by  xz(1),
       gzip(1),  bzip2(1),  lzop(1), zstd(1), or lz4(1) will be decompressed; all other files are
       assumed to be uncompressed.

       If no files are specified or file is - then standard input is  read.   When  reading  from
       standard  input,  only files supported by xz(1) are decompressed.  Other files are assumed
       to be in uncompressed form already.

       Most options of grep(1) are supported.  However, the following options are not supported:

           -r, --recursive

           -R, --dereference-recursive

           -d, --directories=action

           -Z, --null

           -z, --null-data

           --include=glob

           --exclude=glob

           --exclude-from=file

           --exclude-dir=glob

       xzegrep is an alias for xzgrep -E.  xzfgrep is an alias for xzgrep -F.

       The commands lzgrep, lzegrep, and lzfgrep are provided  for  backward  compatibility  with
       LZMA Utils.

EXIT STATUS

       0      At  least  one  match  was  found  from at least one of the input files.  No errors
              occurred.

       1      No matches were found from any of the input files.  No errors occurred.

       >1     One or more errors occurred.  It is unknown if matches were found.

ENVIRONMENT

       GREP   If GREP is set to a non-empty value, it is used instead of grep, grep -E,  or  grep
              -F.

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), lz4(1), zgrep(1)