How to Talk, So Your Operating System Will Listen…How to Listen, When Your Operating System Talks

What’s happening under the hood when a user types ls -l into the shell or a command-line interpreter??

Trying to eliminate some of the blurred lines that come with typing commands into the shell.
You can see, I started with a prompt ~$ and through changing the PS1 value, I made it a smiley face :
Displays the output given after executing commands ls, ls -a, and ls -l into the shell via interactive mode.
An alias that verifies with the user whether they’d like to finish removing a file, upon entering rm filename
Upon typing $PATH, the shell will display the value of the environment variable, PATH.

Full-Stack Software Engineering Student at Holberton School