uuidgen --version (return code: 0)
uuidgen from util-linux 2.27.1
uuidgen --help (return code: 0)
Usage:
uuidgen [options]
Create a new UUID value.
Options:
-r, --random generate random-based uuid
-t, --time generate time-based uuid
-V, --version output version information and exit
-h, --help display this help and exit
For more details see uuidgen(1).