help needed on awk


 
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# 1  
Old 09-18-2008
help needed on awk

Hi

i have a file /services which has the following content.

ff1 2201
f1 2202

In my program following logic is used.

SVC=$NICKNAME
PRT=$(awk '/'$SVC'/ { print substr($2,1,index($2,"/")-1); }'/services)

where SVC will be ff1 and f1.

when SVC is f1 the output of the second line will be 2201 and 2202.

How should I modify the second line such that it will look for the exact string and output only 2201 for ff1 and only 2202 for f1?

Thanks.
# 2  
Old 09-18-2008
The /regex/ looks for "regex" anywhere on the line. Use ^ to explicitly require the match to occur at beginning of line.

Code:
awk /^"$SVC"/' { ... }'

# 3  
Old 09-18-2008
Thanks a lot

PRT=$(awk '/'^"$SVC"'/ { print substr($2,1,index($2,"/")-1); }' /etc/inet/services)

is perfectly working fine... :-)
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