One Day One Command :-
====================
sleep/usleep -- Sleep for a specified amount of time
Summary :
Sleep will introduce a delay for a specified seconds (Seconds may be
an arbitrary floating point number). usleep sleeps some no of micro-
seconds (default is 1).
Examples :
$ sleep 6 -- Sleep for 6 Seconds.
$ sleep 6s -- Sleep for 6 Seconds (Default).
$ sleep 6m -- Sleep for 6 Minutes.
$ sleep 6h -- Sleep for 6 Hours.
$ sleep 6d -- Sleep for 6 Days.
$ sleep 10.5 -- sleep for 10.5 Seconds.
$ usleep 200 -- Sleep for 200 mSec.
Sleep may NOT give a very accurate result on many machines.
Read : man sleep, usleep
Bye :)
--
Bharathi S