Script using pstree


 
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# 1  
Old 07-30-2018
Script using pstree

Hi guys

I am trying to write a script using pstree. I understand what pstree does and how to write the command etc but I want to have a script which adds up all of the processes in the tree to get a whole number instead of the tree list which would normally come out.

What I have done so far is below (very basic):

Code:
epagent_process=`pstree 9059`

echo $epagent_process

exit 0

Code:
java-+-2*[perl] `-258*[{java}]

Ideally i would be able to add the perl & the java to get a total number in this example would be 260.

Any help would be greatly appreciated.

Thanks

Last edited by simpsa27; 07-30-2018 at 09:53 AM..
# 2  
Old 07-30-2018
somewhat rough - for a given data sample - can probably be generalized:
Code:
pstree 9059 | awk -F'[-*]' '{print $3+$5}'

This User Gave Thanks to vgersh99 For This Post:
# 3  
Old 07-30-2018
The following is the total amount of the top process plus its children plus its children-children plus...(all down the tree)
Code:
pstree -ac 9059 | wc -l

This User Gave Thanks to MadeInGermany For This Post:
# 4  
Old 07-31-2018
Thanks for all your help guys this is now solved Smilie thank you very much. I though wc -l just gave a list of the number of proccesses running which is why I was getting confused!

Code:
[casupport@wycvlapph048 centrica]$ pstree 9059 | wc -l
2
[casupport@wycvlapph048 centrica]$

Learn something new everyday!

Thanks again
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