NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern [file...]
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep invokes grep(1) on files which may be either uncompressed or compressed with xz(1),
       lzma(1), gzip(1), bzip2(1),  lzop(1),  or  zstd(1).   All  options  specified  are  passed
       directly to grep(1).

       If  no  file  is  specified,  then  standard input is decompressed if necessary and fed to
       grep(1).  When reading from  standard  input,  gzip(1),  bzip2(1),  lzop(1),  and  zstd(1)
       compressed files are not supported.

       If  xzgrep  is  invoked  as  xzegrep or xzfgrep then grep -E or grep -F is used instead of
       grep(1).  The same applies to names lzgrep, lzegrep, and lzfgrep, which 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 the GREP environment variable is set, xzgrep uses it instead  of  grep(1),  grep
              -E, or grep -F.

SEE ALSO

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