arithmetic operation in bash
#!/bin/bash
x=5
y=10
ans=$(( x + y ))
echo "$x + $y = $ans"arithmetic operation in bash
#!/bin/bash
x=5
y=10
ans=$(( x + y ))
echo "$x + $y = $ans"how to perform mathematical operations in shell script
#!/bin/sh
a=10
b=20
val=`expr $a + $b`
echo "a + b : $val"
val=`expr $a - $b`
echo "a - b : $val"
val=`expr $a \* $b`
echo "a * b : $val"
val=`expr $b / $a`
echo "b / a : $val"
val=`expr $b % $a`
echo "b % a : $val"
if [ $a == $b ]
then
echo "a is equal to b"
fi
if [ $a != $b ]
then
echo "a is not equal to b"
fiCopyright © 2021 Codeinu
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