sleep.1

unix v7是最后一个广泛发布的研究型UNIX版本

.TH SLEEP 1 
.SH NAME
sleep \- suspend execution for an interval
.SH SYNOPSIS
.B sleep
time
.SH DESCRIPTION
.I Sleep
suspends execution for
.I time
seconds.
It is used to execute a command
after a certain amount of time as in:
.PP
	(sleep 105; command)&
.PP
or to execute a command every so often, as in:
.PP
	while true
.br
	do
.br
		command
.br
		sleep 37
.br
	done
.SH "SEE ALSO"
alarm(2), sleep(3)
.SH BUGS
.I Time
must be less than 65536 seconds.