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Top Forums Shell Programming and Scripting Why don't kill the script after 5s? Post 302926072 by yanglei_fage on Friday 21st of November 2014 05:03:40 AM
Old 11-21-2014
Why don't kill the script after 5s?

Code:
# watchdog process 
mainpid=$$ 
(sleep 5; kill $mainpid) & 
watchdogpid=$! 
sleep 100 
kill $watchdogpid

The sleep isn't be killed, I want the script to be killed

---------- Post updated at 03:03 AM ---------- Previous update was at 12:04 AM ----------

I just modify the format of my script

Last edited by yanglei_fage; 11-21-2014 at 06:03 AM..
 

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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)
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