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RedHat 9 (Linux i386) - man page for sleep (redhat section 3)

SLEEP(3)			    Linux Programmer's Manual				 SLEEP(3)

NAME
       sleep - Sleep for the specified number of seconds

SYNOPSIS
       #include <unistd.h>

       unsigned int sleep(unsigned int seconds);

DESCRIPTION
       sleep()	makes  the  current  process sleep until seconds seconds have elapsed or a signal
       arrives which is not ignored.

RETURN VALUE
       Zero if the requested time has elapsed, or the number of seconds left to sleep.

CONFORMING TO
       POSIX.1

BUGS
       sleep() may be implemented using SIGALRM; mixing calls to alarm() and  sleep()  is  a  bad
       idea.

       Using  longjmp() from a signal handler or modifying the handling of SIGALRM while sleeping
       will cause undefined results.

SEE ALSO
       signal(2), alarm(2)

GNU					    1993-04-07					 SLEEP(3)


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