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Full Discussion: Script for Deleting a process which exist every day in hold state
Top Forums Shell Programming and Scripting Script for Deleting a process which exist every day in hold state Post 302947402 by RudiC on Wednesday 17th of June 2015 06:13:01 PM
Old 06-17-2015
That specification is very difficult to interpret. Some comments to improve:
- post the full error messages or strange behaviour in lieu of "did not work"
- post sample files (in code tags) instead of pictures so people can work on them
- explain what uncommon programs (sel? del?) do; give success and failure output

I don't know a thing about "direct" nor "sel proc". If the output of the latter is close to what you posted as an image, this might be a starting point for you to taylor and improve:
Code:
number=$(sel proc | awk '/^--*$/ {getline; print $2; exit} /Successfully/ {print 0; exit}')
[ "$number" -eq 0 ] && echo "no hold state" || del proc $number

0 is a PID that will never occur so it seemed quite safe to use as the "token" to convey success.. Killing processes by script is a delicate thing so you should know exactly what you are doing, and you might want to build in other safety steps.
Last edited by RudiC; 06-17-2015 at 07:23 PM..
 

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LEARN ABOUT OSX

kill.d

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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