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Top Forums Shell Programming and Scripting Help with kill a specific process after certain running time Post 302778303 by kshji on Sunday 10th of March 2013 11:12:45 AM
Old 03-10-2013
Code:
# background process
java java.jar task_run.txt > /dev/null 2>&1   &
# take bg process id
PID=$!
# wait 60 s
sleep 60
# you can kill the process - if it's already stopped, then no problem
# send default signal TERM to the java process, it if's still working 
# = java can handle signal
kill $PID 2>/dev/null
sleep 2
# still process ? use signal KILL = and I mean it
kill -KILL $PID  2>/dev/null

 

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KILL(1) 						      General Commands Manual							   KILL(1)

NAME
kill - terminate a process with extreme prejudice SYNOPSIS
kill [ -sig ] processid ... kill -l DESCRIPTION
Kill sends the TERM (terminate, 15) signal to the specified processes. If a signal name or number preceded by `-' is given as first argu- ment, that signal is sent instead of terminate (see sigvec(2)). The signal names are listed by `kill -l', and are as given in /usr/include/signal.h, stripped of the common SIG prefix. The terminate signal will kill processes that do not catch the signal; `kill -9 ...' is a sure kill, as the KILL (9) signal cannot be caught. By convention, if process number 0 is specified, all members in the process group (i.e. processes resulting from the current login) are signaled (but beware: this works only if you use sh(1); not if you use csh(1).) Negative process numbers also have special meanings; see kill(2) for details. The killed processes must belong to the current user unless he is the super-user. The process number of an asynchronous process started with `&' is reported by the shell. Process numbers can also be found by using ps(1). Kill is a built-in to csh(1); it allows job specifiers of the form ``%...'' as arguments so process id's are not as often used as kill arguments. See csh(1) for details. SEE ALSO
csh(1), ps(1), kill(2), sigvec(2) BUGS
A replacement for ``kill 0'' for csh(1) users should be provided. 4th Berkeley Distribution April 20, 1986 KILL(1)
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