xzgrep - search possibly-compressed files for patterns

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=globxzegrep 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.

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

       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.

       xzgrep - search possibly-compressed files for patterns

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

Tukaani                                            2024-02-13                                          XZGREP(1)

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