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Old 11-29-2009, 07:52 PM   #1
ttsdinesh
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Question shell program to find a process load


I need to find the CPU load being used by a particular process,say for example "java".Also i need to write that process's load to a file. i used the following command:
Quote:
TOP
But it lists all the processes and their load. I need just the load of java alone. Is there any way to parse the output or somebody help me with a shell program?
 
Old 11-29-2009, 07:54 PM   #2
jiobo
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Code:
top | grep java
 
Old 11-29-2009, 07:54 PM   #3
bret381
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add " | grep java > newfilename"
 
Old 11-29-2009, 07:57 PM   #4
ttsdinesh
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Let me try and will get u back Dudes.
 
Old 11-29-2009, 08:34 PM   #5
evo2
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Have a look at the top man page. Specifically regarding the -b flag for batch mode.

Evo2.
 
Old 11-29-2009, 09:12 PM   #6
vishesh
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what about
root#top -b -d 5 -p <pid of process>

-b -> in batch mode
-d-> Delay

Thanks
 
Old 12-01-2009, 06:52 PM   #7
ttsdinesh
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I tried with
Quote:
top | grep java
. But it prints the entire line
Quote:
ubuntu@ubuntu:~$top | grep Xorg
4102 root 20 0 41748 13m 6832 S 7.3 2.7 0:48.57 Xorg
where Xorg is the process whose output to be found. And 7.3 is Xorg's CPU%. I just need the CPU% alone. But here all details of the process including PID are displayed. Is there any way to parse the output?
 
Old 12-01-2009, 07:26 PM   #8
evo2
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Quick and dirty with awk:
Code:
top -b -n 1  | grep Xorg | awk '{ print $9 }'
Evo2.
 
Old 12-01-2009, 11:02 PM   #9
ttsdinesh
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Thumbs up

Thank u Evo. I got it...
 
  


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