This document has links to some useful reading material

Using git on the pi is command-line, which can be daunting. Luckily there's loads of resources online.

Screen is a really cool command-line tool for doing a few things at once. If you’re using a GUI it’s not very useful since you can just open another terminal window, which is basically what screen does. Start a new screen by running screen bash. From there, do whatever you like, maybe start Coderbot or start compiling some software, then detach from the screen with CTRL+A+D and continue working on the other terminal. To resume your screen and see what Coderbot has been talking about, run screen -r <screen name> (you can use TAB to cycle through screen names, and you give a screen a name before starting it using the -S option i.e. screen -S coderbot bash

Nano is a command-line text editor and includes syntax highlighting for python, bash scripts, and more. Have a look online for a cheat sheet or tutorial

Idle is a python script editor with a GUI. There are many alternatives, but this one is decent enough