Well, yet again this should be in the Help(General) section of the forum.
In my opinion the best way to learn scripting is by watching and following tutorials as you will gradually pick up the skill of scripting. BurgZerg Arcade has a long series of RPG tutorials 1-400 which is a good place to start. Another way you could try is by watching Unity Scripting Tutorials -
Serious, Focused but FUN.