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), or lzop(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), and lzop(1) compressed files are not supported.

       If  xzgrep  is  invoked  as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The
       same applies to names lzgrep, lzegrep, and lzfgrep, which are provided for  backward  compatibility  with
       LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

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