Bash Shell Scripting- Arithmetic operators

The video tutorial explains the default data type of variables in shell scripting, which is a string, and the challenges this presents for performing arithmetic operations. It introduces basic arithmetic operations using shell commands and advanced operations using the bash calculator (BC) for handling floats. The tutorial includes examples of shell scripts for arithmetic operations and demonstrates creating interactive scripts that take user input for calculations.

What is the purpose of the 'scale' parameter when using the bash calculator?

How can you store the result of a command in a variable in shell scripting?

Describe how to read user input in a shell script for arithmetic operations.

What should you do if you want to perform operations with float numbers in shell scripting?