How to select column 2 in a matrix

I have a 4 by 5 matrix and I need to select column 2 and make it into a new matrix . Im pretty new to coding so i dont know many complex things in matlab.

Answer 1

[KSSV]

A = rand(4,5) ;
A2 = A(:,2)  % extract second column 

: this stands for all in this case. The command extract entire row of second column.

[Brendan Steele]

Thank you the second one worked for me