Find Exit Code of Last Command Run On The Command Line

This is how you find the exist code of the last command you ran:

A `0` is returned if there were no problems. Any non-0 value represents an error.

For example, this will return `0` (assuming `date` runs properly):

And this will return `1` because running false returns it like an error would

#+REFERENCES:

- https://bash.cyberciti.biz/guide/The_exit_status_of_a_command