Going to Line Number

There are two ways for going to a line (say line number 149).
(i) Esc :149
(ii) Press 149G

PS: I would like to suggest that please enable the line number by pressing
Esc :set nu
in the Vim editor. Then you can use above trick efficiently and easily.

Deleted Contents in Numbered[1-9] Buffers

If you have deleted some content (line(s) or word(s)) accidentally,
you can retrieve using Paste command (p or P).

For example,

In order to retrieve second latest deleted content:
Press Esc
Press "2p