sleep - Suspend execution for an interval of time
unsigned int sleep(
unsigned int seconds );
Standard C Library (libc)
Threads Library (libpthreads.a)
Interfaces documented on this reference page conform to
industry standards as follows:
sleep(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information
about industry standards and associated tags.
Specifies the number of seconds to sleep.
The sleep() function suspends execution of a process for
the interval specified by the seconds parameter. The suspension
time may be longer than requested due to the
scheduling of other activity by the system.
In a multi-threaded environment, the sleep() function is
redefined so that only the calling thread is suspended.
If the sleep() function returns because the requested time
has elapsed, it returns 0 (zero). If the sleep() function
returns because it caught a signal, the function returns
the number of seconds remaining in the suspension.
Commands: wall(1), shutdown(8) sleep(1)
Functions: sigaction(2), alarm(3), pause(3)
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