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Top Forums Shell Programming and Scripting How to detect Hanged process in shell script? Post 302880897 by Nakul_sh on Tuesday 24th of December 2013 09:52:54 AM
Old 12-24-2013
Thanks for your reply.
Just wanted to confirm: I am working in Ksh. So will that command work?
alarm 15 will wait for 15 sec ?
Also what is pkill command is used for? does it act like ctrl+c ?

Sorry but i am new to shell scripting so please help
 

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ALARM(3)						   BSD Library Functions Manual 						  ALARM(3)

NAME
alarm -- set signal timer alarm LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <unistd.h> unsigned alarm(unsigned seconds); DESCRIPTION
This interface is made obsolete by setitimer(2). The alarm() function sets a timer to deliver the signal SIGALRM to the calling process after the specified number of seconds. If an alarm has already been set with alarm() but has not been delivered, another call to alarm() will supersede the prior call. The request alarm(0) voids the current alarm and the signal SIGALRM will not be delivered. Due to setitimer(2) restriction the maximum number of seconds allowed is 100000000. RETURN VALUES
The return value of alarm() is the amount of time left on the timer from a previous call to alarm(). If no alarm is currently set, the return value is 0. SEE ALSO
setitimer(2), sigaction(2), sigpause(2), sigvec(2), signal(3), sleep(3), ualarm(3), usleep(3) HISTORY
An alarm() function appeared in Version 7 AT&T UNIX. BSD
April 19, 1994 BSD
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