Step 2:
Type gvim in your terminal and it will not hog it until you close gvim i.e
john@John-Tosh-Lin 10:31 ~
$ gvim
[1] 10381
john@John-Tosh-Lin 10:31 ~
$
As a bonus, if you start gvim in the directory that you are working in then NERDTree’s root will be the directory you are in. That in itself saves a lot of time 🙂
Tada!
Enjoy your newly reclaimed terminal people 🙂