Addition of two variables in shell script - CodexRitik

Addition of two variables in shell script 

1. initialize two variables

2. Add two variables directly using $(...) or by using external program expr

3. Echo the final result.

• Code:

#Shell Program To Add Two Numbers Using expr if Value Already Given

num1=20

num2=10     #Don't Give between space

sum=` expr $num1 + $num2 `

echo "Sum Of Two Numbers : $sum"

• Output:

Sum Of Two Numbers : 30

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sum of two numbers in shell

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