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Processing text variables that have numbers in CShell

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# 1  
Old 11-03-2011
Processing text variables that have numbers in CShell
Hello,

I have a case where I need to process an environment variable text value in CShell to calculate the product of 2 numbers stated in the variable string having the format "<first_number>Letter x<second_number>".

Ex: $VAR = "24x20"

I need to set $VAR_PRODUCT = "Product of 20 and 24"

Any help would be much appreciated.

Thanks,
# 2  
Old 11-03-2011
Why not just replace x with * and run a bc on it ?
# 3  
Old 11-03-2011
Try this,

Code:
var="25x24";
first=`echo $var | cut -d 'x' -f 1`
second=`echo $var | cut -d 'x' -f 2`
let result=$first*$second;
echo $result;

This User Gave Thanks to karthigayan For This Post:
mohy
# 4  
Old 11-03-2011
I'm not familiar with csh but could it be something like?

Code:
set $VAR_PRODUCT=`echo $VAR | sed 's/\(.*\)x\(.*\)/Product of \1 and \2/'`

This User Gave Thanks to Franklin52 For This Post:
mohy
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