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)