How do you write a sequence of commands or a script that demonstrates variable expansion occurs before pathname expansion?

Answer 1

To demonstrate variable expansion occurring before pathname expansion in a script, you can create a variable with a wildcard character and then echo the variable within single quotes to prevent pathname expansion. Here's an example:

#!/bin/bash

files='*.txt'
echo '$files'

When you run this script, you'll see that the output includes *.txt as is, demonstrating that variable expansion happened before pathname expansion, as the wildcard character wasn't expanded.