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Isolate text with sed or similar utility

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# 1  
Old 09-21-2015
Isolate text with sed or similar utility
All,

I'm getting a list like the following and I'd like to kill each PID in turn.

Code:
        pid (17797)
        pid (21748)
        pid (21754)
        pid (21704)
        pid (2199)
        pid (2159)
        pid (17809)
        pid (21769)
        pid (21778)
        pid (21715)
        pid (2211)
        pid (2171)

How can I isolate the PID in ksh with sed or other utility?
Thank you!
Last edited by Scrutinizer; 09-21-2015 at 01:14 PM.. Reason: code tags
# 2  
Old 09-21-2015
No idea yourself?
# 3  
Old 09-22-2015
Managed to extract numbers with sed using following command:

Code:
sed "s/[^0-9]//g"

---------- Post updated at 04:43 AM ---------- Previous update was at 04:42 AM ----------

What if I wanted to extract everything in between parentheses ( ) regardless of what's in there (letters, numbers, symbols, etc)?
This User Gave Thanks to ejianu For This Post:
MadeInGermany
# 4  
Old 09-22-2015
Hello ejianu,

Following may help you in same.
Code:
awk -F"[)(]" '{print $2}' Input_file
OR
sed 's/.*(//;s/).*//;'  Input_file

Output will be as follows.
Code:
17797
21748
21754
21704
2199
2159
17809
21769
21778
21715
2211
2171

EDIT: Adding one more solution with shell for same.
Code:
while read line
do
   line=${line##*(};
   echo ${line%%)*};
done < Input_file

Thanks,
R. Singh
Last edited by RavinderSingh13; 09-22-2015 at 08:12 AM.. Reason: Added a sed solution now for same. Added a parameter expansion solution for same now.
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