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Top Forums Shell Programming and Scripting understanding the kill command Post 302343321 by zaxxon on Wednesday 12th of August 2009 07:03:32 AM
Old 08-12-2009
Using "ps -ef" for example you should see one column with the PID and right next to it the PPID. The PPID is the PID of the parent process. So you can follow which process is related to another.
Killing the parent process should usually kill the the child processes too. Sometimes you have to kill them manually even if the parent is dead already.

Always try to stop your application 1st by it's usual way like via script or binary and then with a kill. Always try to just kill it before you do kill -9. kill -9 should be last resort.
 

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kill.d(1m)							   USER COMMANDS							kill.d(1m)

NAME
kill.d - snoop process signals as they occur. Uses DTrace. SYNOPSIS
kill.d DESCRIPTION
kill.d is a simple DTrace program to print details of process signals as they are sent, such as the PID source and destination, signal num- ber and result. This program can be used to determine which process is sending signals to which other process. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
Default output, print process signals as they are sent. # kill.d FIELDS
FROM source PID COMMAND source command name TO destination PID SIG destination signal ("9" for a kill -9) RESULT result of signal (-1 is for failure) DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
kill.d will run forever until Ctrl-C is hit. AUTHOR
Brendan Gregg [Sydney, Australia] SEE ALSO
dtrace(1M), truss(1) version 0.90 May 14, 2005 kill.d(1m)

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