Table of Contentssleep - Sleep for the specified number of seconds #include <unistd.h>
unsigned int sleep(unsigned int seconds); sleep() makes the current process sleep until seconds seconds have elapsed or a signal arrives which is not ignored. Zero if the requested time has elapsed, or the number of seconds left to sleep. POSIX.1 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.
signal(2), alarm(2)
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