Bash Shell Scripting - declare Statement

The video tutorial explains the use of the declare statement in shell scripting. It covers how to declare variables, assign values, and export them as environment variables. The tutorial also demonstrates setting variables as read-only, restricting them to integers, and converting their case to uppercase or lowercase. The video concludes with a brief overview of the declare options discussed and mentions future topics on arrays.

How does the declare command handle integer-only variables?

Describe how to make a variable read-only using the declare command.

What is the effect of using the -L option when declaring a variable?