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UNIX for Dummies Questions & Answers
Sleep Until Query
Post 302590062 by jgt on Friday 13th of January 2012 05:49:52 PM
01-13-2012
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LEARN ABOUT OSF1
sleep
sleep(3) Library Functions Manual sleep(3) NAME
sleep - Suspends execution for an interval of time LIBRARY
Standard C Library (libc.a) Threads Library (libpthreads.a) SYNOPSIS
#include <unistd.h> unsigned int sleep ( unsigned int seconds ); STANDARDS
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. PARAMETERS
Specifies the number of seconds to sleep. DESCRIPTION
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. RETURN VALUES
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. RELATED INFORMATION
Commands: wall(1), shutdown(8) sleep(1) Functions: sigaction(2), alarm(3), pause(3) Standards: standards(5) delim off sleep(3)