xzfgrep --version (return code: 0)
xzfgrep (XZ Utils) 5.1.0alpha
xzfgrep --help (return code: 0)
Usage: xzfgrep [OPTION]... [-e] PATTERN [FILE]...
Look for instances of PATTERN in the input FILEs, using their
uncompressed contents if they are compressed.
OPTIONs are the same as for 'fgrep'.
Report bugs to <lasse.collin@tukaani.org>.