[Edit]

Bash - how to write simple calculator?

1 contributors

2 contributions

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16 points

Created by:

Wade

562

Using bash it is possible to write simple calcualtor in following way.

1. In brackets expression example

Edit

calcualtor.sh file:

xxxxxxxxxx
 
#!/bin/bash
​
set a b operation;
​
echo -e "Select operation type: + - * /";
read operation;
echo "a=";
read a;
echo "b="
read b;
​
echo "Result:" $(($a$operation$b));

Running:

xxxxxxxxxx
 
$ ./calculator.sh
Select operation type: + - * /
+
a=
3
b=
6
Result: 9

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