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script : value of count is becoming zero outside loop

 
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script : value of count is becoming zero outside loop
srishekh
7 Feb, 2008 - 04:27 AM
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#! /bin/ksh
count=0
t1=0
find . -name "*.cpp" |
while read filename
do
tmp=`wc -l $filename |awk -F' ' '{ print $1 }'`
#echo $tmp
count=`expr ${count} + ${tmp}`
done
echo ${count}
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TheMagnitude
RE: Script : Value Of Count Is Becoming Zero Outside Loop
7 Feb, 2008 - 02:43 PM
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This isnt C++ or C, you got the wrong forum...
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baavgai
RE: Script : Value Of Count Is Becoming Zero Outside Loop
7 Feb, 2008 - 05:14 PM
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Scope is a little odd in shell scripts.

One solution would be to dump the results into a temp file and grab them later. e.g.

CODE

#!/bin/ksh

tempFile=foo.txt
count=0
find . -name "*.cpp" |
while read filename; do
   tmp=`wc -l $filename  | sed "s/^\([0-9]*\).*/\1/"`
   count=`expr ${count} + ${tmp}`
   echo $count > $tempFile
done
cat $tempFile
rm -f $tempFile


Hope this helps.
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