We can add some personal tweaks to the vi editor, making editing just a bit easier.
Remember on page 5 the important config files ? Remember ~/.exrc ? That is one we will tweak.
The ~/.exrc file stores the settings for the vi editor, I like my vi to number the lines, so if I get an error message that on line 26 there is a conflict I can easily find it, also I like to see the mode vi is in.
So I use 1 and 5 from this list: ( this list is over-complete, but just pick the ones you like )
map ^X :set backup="%~"
map S :r ~/.signature
Here is how you do it:
$ vi .exrc
< Esc >
The next time you start your favorite editor the .exrc will be used.