fancy stuff for vi

in vi, the default indent is 8, while in visual studio, it is 8, so how to change it to 4 from 8.

check out this website:

http://tedlogan.com/techblog3.html

in vi:

:set tabstop=4

or change the file ~/.vimrc

I put set nu in the end of file, and now it will automatically show the line number.