I'm just learning guitar, what should i learn first?

start by learning simple chords like Em, E, Am, G, D, C

learning the string names(from thin to thick)E B G D A E

and watch some YouTube easy tutorials for some simple songs

learn some common scales like the C major scale

the best idea is to get a teacher to teach you

so they and correct you immediately if your doing something wrong

You should take lessons. You will get a hundred different answers from 100 people. Only a teacher can give you feedback, and can give you tips and techniques that you won't get from a book, CD/DVD s, or the internet.

Learn that the strings are : E, A ,D, G, B ,E, then get a book on guitar chords, learn a few songs, let the tips of your fingers get tough, and your on your way!

Do these chords in sequence:

E G D A

That's the intro to Sin City by Ac/Dc

(And then those are also the chords to the rest of the song just about, so...once you got that down, you got it all down. rock on.)

Start off by learning the easiest chords: G, A, D, E, C.

You can learn this by playing simple songs in beginner booklets or by youtube tutoring.