Which command will display a list of the currently defined aliases on the system?

The alias command.

This command list all aliases currently assigned or defined on the system without using arguments. However, in bash environments, arguments can be used. In many occasions, aliases are loaded at initialization of your shell. This command is built in a number of shells like ash, bash, ksh and csh

You aren't giving enough information. what kind of "tool" do you mean? if you want an opinion, then jeremy should use a computer to show how his web will look like.

Atool bar wit status and quick acsess tolls on it