I think you are looking for this:
awk '/^[JM]/{print $1,$2}' i_ve_got_an_vi_edirtor_with_some_collums.file
update
Now i need the same but only for students that the surname starts from [A-D]
awk '$2~/^[A-D]/{print $1,$2}' i_ve_got_an_vi_edirtor_with_some_collums.file
16
solved Use awk to find letters and print results [closed]