#bash-shell-finds-out-if-a-variable-has-a-null-value-or-not

Bash shell finds out if a variable has a NULL value OR not

In the Bash shell, you can use the -z option to check if a variable has a null (empty) value or not. Here's an example: if [ -z "$my_var" ]; then echo "my_var is null or empty" else echo "my_var is not null or empty" fi In the above example, $my...