sleep.1 (2010 09)

s
sleep(1) sleep(1)
NAME
sleep - suspend execution for an interval
SYNOPSIS
sleep time
DESCRIPTION
sleep suspends execution for time seconds. It is used to execute a command after a certain amount of
time, as in:
(sleep 105; command)&
or to execute a command periodically, as in:
while true
do
command
sleep 37
done
RETURN VALUE
sleep exits with one of the following values:
0 The execution was successfully suspended for time seconds, or a
SIGALRM signal was received.
>0 If the time operand is missing, is not a decimal integer, is negative, or is greater than
UINT_MAX, sleep returns with exit status 2.
SEE ALSO
alarm(2), sleep(3C).
STANDARDS CONFORMANCE
sleep: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1