3d printing firmware extruder help

[3dprint123]

Well i know the E paramenter of g1 tells to extrude but is what i put in that paramenter how much it extrudes from begin to end or somthing else?
It is gonna need to work with slic3r.
And what are the command that i realy need to put in my software?

[3dkarma]

Well i know the E paramenter of g1 tells to extrude but is what i put in that paramenter how much it extrudes from begin to end or somthing else?

The parameter tells it what length of plastic gets fed into the extruder - that's what's fed in, not what comes out - in mm.

And what are the command that i realy need to put in my software?

You're the only one who knows what you want your software to do, so you're the one who really needs to answer that question. Have you read the g code reference on the reprap wiki?