kmk_sleep --version (return code: 0)
kmk_sleep - kBuild version 0.1.9998 (r2814)
Copyright (c) 2008-2009 knut st. osmundsen
kmk_sleep --help (return code: 0)
usage: kmk_sleep <seconds>[s]
or: kmk_sleep <milliseconds>ms
or: kmk_sleep <minutes>m
or: kmk_sleep <hours>h
or: kmk_sleep <days>d
or: kmk_sleep --help
or: kmk_sleep --version
Only integer values are accepted.