Hi,

I'm very new to unix.. so i need help on getting the following output..
I ve to take two values from a parm file.. then update one of those values by adding 1 to it.. and finally concatenate both the values to get the output..

My code is :

awk -F"=" 'NR<3 {print $2}' filename.parm | while read RUN_ID ver_num
do
echo "$RUN_ID" "$ver_num"
RUN_ID=`expr "$RUN_ID" + 1`
echo $RUN_ID
OUT_RUN_ID="$ver_num$RUN_ID"
echo $OUT_RUN_ID
done

I get RUN_ID and ver_num as 0 and 7.0 from the parm file.. I need my output to be 7.01 after final concatenation...

But i get my output as:
1
1
7.0
expr: 0402-046 A specified operator requires numeric parameters.


Kindly help me on this....