How to generate a 'kill' list


 
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# 1  
Old 04-30-2008
How to generate a 'kill' list

Hi,

I want to write a script which can generate a kill list for killing process, program name start with f60.., which have been running for more than 8 hours, the list output should looks like:

kill -9 4444176
kill -9 4674520
kill -9 4454180
kill -9 4994523

Can anyone help how to write it?

Thanks!
Victor Cheung
# 2  
Old 04-30-2008
Code:
ps --suitable=options | awk '$7 ~ /^[f]60/ && $5 > 8 { print $1 }' | xargs kill

The "suitable options" and the field numbers to use in the awk script depend on which platform you are on. Consider this pseudo-code.

Are you sure you understand the consequences of "kill -9"? You should use a less drastic signal if at all possible.
# 3  
Old 04-30-2008
Here's something for Linux.

Code:
ps aux | awk '$11 ~ /(^|\/)[f]60/ { split ($10,t,/:/); if (t[1] > 8) print $2 }'

# 4  
Old 04-30-2008
Hi Era,

I use the following in AIX :

ps aux | awk '$11 ~ /(^|\/)f60/ { split ($9,t,/:/); if (t[1] > 8) print $2 }'

and it return:

4468962

and I grep the process:
root@lkmprod11i:/home/oracle/victor> ps -ef|grep 4468962
appl115 4468962 6123696 0 09:05:04 - 0:00 f60runm webfile=5,27368,lkmprod11i_9002_PROD11i
root 9077560 10519380 0 15:15:38 pts/0 0:00 grep 4468962

The program start time is 09:05 and the system current time is 15:15, it is less then 8 hours long, it should not be returned, can you please help and review? Thanks!

On the other hand, I have to add one more condition to it, if the process id or parent process id is 1 then don't let it returned, how to do that?

Thanks!
Victor Cheung

Last edited by victorcheung; 04-30-2008 at 05:12 AM..
# 5  
Old 04-30-2008
The PPID is not visible in the ps aux output, you might need different options to get that column also. Then it should be a trivial problem to add '&& $3 > 1' with the correct field number of course before the opening curly.

You want the [f] with the square brackets, otherwise you risk to kill the script itself (in theory, mostly, I guess, in the current scenario; but what if you repurpose the script later? Better make it right).
# 6  
Old 04-30-2008
Hi Era,

Sorry, I have edited my post:

I use the following in AIX :

ps aux | awk '$11 ~ /(^|\/)f60/ { split ($9,t,/:/); if (t[1] > 8) print $2 }'

and it return:

4468962

and I grep the process:
root@lkmprod11i:/home/oracle/victor> ps -ef|grep 4468962
appl115 4468962 6123696 0 09:05:04 - 0:00 f60runm webfile=5,27368,lkmprod11i_9002_PROD11i
root 9077560 10519380 0 15:15:38 pts/0 0:00 grep 4468962

The program start time is 09:05 and the system current time is 15:15, it is less then 8 hours long, it should not be returned, can you please help and review? Thanks!


Victor Cheung
# 7  
Old 04-30-2008
Check man ps for an option which list the actual run time. (Apparently you want wall clock time, not CPU time -- that might not be directly available. Then you need to do some time calculations in awk, which doesn't sounds like much fun.)
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