"1. Vim Local Bookmark
Within a single file when you want to go to a particular position
or line, then you can use local marking. If the bookmark name is a
lower case letter, then that is local mark.
"How to Create Bookmark Inside Vi?
Type m{macro-name}. macro-name is an alphabet to refer to the name
of the bookmark.
"If you type "ma" , it will create bookmark on the current line
at the current location with name "a". In the following example,
typing ma has created a bookmark at the exact location where the
cursor is highlighted."