Virus (VI Resembling Utility Skeleton) is the editor used on to edit your config file.
Virus has 2 modes: command-mode and editing-mode. You start in the command-mode.
In command-mode, you can enter any of the following commands. In editing-mode, you edit the document, and pressing ESC returns you to command-mode.
|i||Enter editing mode. (Insert)|
|a||Enter editing mode. (Append)|
|<esc>||Leave editing mode, aka go to command mode.|
|:w<enter>||Save changes to file.|
|:q!<enter>||Quit, don't save changes to file.|
|x||Delete character under cursor.|
|dd||Delete line under cursor.|
|p||Paste deleted text.|
|$||Move cursor to end of line.|
|^||Move cursor to beginning of line.|
|G||Move cursor to end of file.|
You can also edit your config file on the web site