What are the "Programmer shortcuts" in emacs?

Question

I would like to know what are all the programmer-useful shortcuts that exists in emacs.
I come from a netbeans background and I am trying to make myself comfortable with emacs -text only environment. So I am looking at shortcuts for "refactoring" the code, "auto-completion", "go to definition" etc.

How can all these be achieved in emacs ? What are other programmer-useful shortcuts ?

I'll be using emacs basically for LAMP, javascript, C, C++.

ps - you can safely assume that I know how to open a file, save a file, navigate and whatever is in the tutorial in emacs.

Answer 1

For auto-completion, use etags with M-xtags-search or M-xetags-select-find-tag. I use macros often to do repetitive tasks. C-x(<string of useful tasks>C-x). Also, M-xalign-regexp to beautify the code and make it more readable.

You should find most of the most used features by Emacs users in this question's answers here at Stackoverflow.