The Article shows you How to Get a List of Command Line Aliases and How to Quick-Easy Un-Aliasing.
This is Useful when you Find Some Kind of Mis-Behavior Manifested from a Command than has been Override by an Alias Definition Some-Where…
This is Also the Case of some Gentoo Distro Shipping with a cp Alias Meaning ‘cp -i’.
Finally, the post’s Content is Expressly Reduced to Give Focus to the Essentials Instructions and Commands.

Open Terminal Window
(Press “Enter” to Execute Commands)Get Aliases List
alias
UnAliasing
unalias aLiAsNaMe
For Example for Un-Aliasing the Gentoo alias cp=’cp -i’:
unalias cp