xzless --version (return code: 0)
xzless (XZ Utils) 5.1.0alpha
xzless --help (return code: 0)
Usage: xzless [OPTION]... [FILE]...
Like 'less', but operate on the uncompressed contents of xz compressed FILEs.
Options are the same as for 'less'.
Report bugs to <lasse.collin@tukaani.org>.