What kind of arithmetic does Bash handle?

Bash handles basic arithmetic operations, including:

1. Addition: a + b
2. Subtraction: a - b
3. Multiplication: a * b
4. Division: a / b
5. Modulus: a % b

You can perform these operations using the $(( )) syntax. For example:

result=$((a + b))

This will calculate the sum of a and b and store it in result.