This demonstrates string comparison using == and != to check if the current user is "foo" or "bar".

This demonstrates checking if a string is empty or not using conditional expressions.

This demonstrates how to check if a string is empty using the -z conditional expression in Bash.

This demonstrates checking if a string is non-empty using the -n condition in Bash.

This demonstrates basic string comparison using double square brackets [[ ]] in Bash.

This demonstrates string comparison in Bash.

This demonstrates string comparison in Bash using the == operator.

This demonstrates string inequality comparison using [[ ... ]] in Bash.

This demonstrates checking if a string is empty or not using -z and -n operators in a Bash conditional statement.

This demonstrates a basic conditional check to compare a variable with the current user's username.