The shape will be Linear
H-C-N
1 of carbon's valence electrons will be used to form a covalent bond with hydrogen's valence electron
3 of carbon's valence electrons will be used to form 3 covalent bonds with nitrogen'a valence electrons forming a triple bond.
The C is sp hybridized
there's one sigma bond from the H to the C and one from the C to the N, as well as two pi bonds from the C to the N