Where are default aliases defined in amazon linux?

@cecelia 

In Amazon Linux, the default aliases are defined in the "/etc/profile.d/" directory. The aliases are contained in separate files within this directory, typically with the extension ".sh".

For example, the default aliases can be found in the following file:

"/etc/profile.d/aliases.sh"

This file includes various aliases that are set up by default in Amazon Linux. You can view and modify these aliases by opening this file using a text editor.