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Grep command behaving strangely

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# 1  
Old 10-12-2010
Grep command behaving strangely
Hi,

I need to count number of '$' symbol in a file and assign it to a variable.
I am using below command.

grep -c '\$' inputfile

O/p:
10359
Its giving correct o/p but when I am assigning the same to a variable its giving completely different o/p.

ab1=`grep -c '\$' inputfile`
$ echo $ab1
316206

Smilie
Can anybody pls help me on this.

Thanks!
# 2  
Old 10-12-2010
Try:
Code:
ab1=$(grep -c '\$' inputfile)

# 3  
Old 10-12-2010
MySQL
wow its working... thanks.. Smilie
can u pls explain why it ws nt working earlier n the functionality of current one..
# 4  
Old 10-12-2010
If you use backticks you need to use extra escape(s) for the dollar sign, otherwise you are counting linefeeds instead of dollar signs. With the $() construct the extra escapes are not necessary.
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