How do I list all installed packages from the command line in bash / osX

Question

What is the -bash command to list all the packages installed locally on my machine?

I am using osX.

I tried the following so far:

1. dpkg -l - doesn't work.
2. apt --installed list - doesn't work.
3. pkgutil --pkgs - lists only those installed with Apple installer. I need all those installed with npm.
4. npm list - works.
5. npm list -g --depth=0 - works.
6. ls `npm root -g` - works.

Answer 1

pkgutil --pkgs will list all the packages installed with Apple's installer