you have two options:
c=`expr $a + $b`
or
c=`echo "$a+$b" | bc`
there might be a more efficient solution but that is all i know at the moment. :)
ciao!
alben benavente alteza writes:
in a bash script, how do we add two numbers like:
a=1
b=2
c=$a+$b
echo $c
my script is treating the numbers as string.
thanks
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