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Assign wc-l value to variable

Posted on 2008-10-12
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Last Modified: 2008-11-24
Hi all,

how do i assign wc value to a variable?

ps | grep -v grep | grep "sh" | wc -l

I tried :

count=`ps | grep -v grep | grep "sh" | wc -l`
count=$(ps | grep -v grep | grep "sh" | wc -l)

but none of them works

is there any other method?


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Question by:c00kie88
6 Comments
 
LVL 40

Expert Comment

by:omarfarid
ID: 22696746
which sell are you using?

This should work for sh/ksh/bash

count=`ps | grep -v grep | grep sh | wc -l`

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Author Comment

by:c00kie88
ID: 22696747
I'm using bourne shell and o/s sun solaris
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LVL 40

Expert Comment

by:omarfarid
ID: 22696761
then it should work, you try to export the variable

count=`ps | grep -v grep | grep sh | wc -l` ; export count
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Accepted Solution

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agriesser earned 375 total points
ID: 22696962
You do not need the `grep -v grep` when using the following trick:
count=`ps | grep [s]h | wc -l`

Open in new window

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LVL 48

Expert Comment

by:Tintin
ID: 22698715
You don't even need wc.  You can do

count=`ps |grep -c "[s]h"`
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LVL 6

Expert Comment

by:peter991
ID: 22702520
What are you trying to achieve?
Number of logged in or just processes containing 'sh'?

You also got the commands 'who' 'whodo' and 'last'...

Regards.
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