Delay for a specified amount of time
sleep NUMBER[SUFFIX]...
sleep OPTION
Pause for NUMBER seconds. SUFFIX may be 's' for seconds (the default), 'm' for minutes, 'h' for hours or 'd' for days. Unlike most implementations that require NUMBER be an integer, here NUMBER may be an arbitrary floating point number. Given two or more arguments, pause for the amount of time specified by the sum of their values.
--help
display this help and exit
--version
output version information and exit
Written by Jim Meyering and Paul Eggert.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report sleep translation bugs to <http://translationproject.org/team/>
Copyright © 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Full documentation at: <http://www.gnu.org/software/coreutils/sleep>
or available locally via: info '(coreutils) sleep invocation'