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Help in modulus operator in Bash

 
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# 1  
Old 12-04-2007
Help in modulus operator in Bash
Hi,

I would like to know given that i have two columns and I would like to take the positive integer of the differences between the two columns.

which means |3-2|=1; |2-3|=1 as well.

I would like to know do Bash recognize | | as well for this purposes?


Thanks.

-Jason
# 2  
Old 12-04-2007
I don't think so ! You should perhaps use the expr command to do some basic mathematical command, but only with integer ! You can use it in a bash script !
# 3  
Old 12-04-2007
Code:
a=100
b=200
((x=a-b))
x=${x#-}

 
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