By no means comprehensive, but enough to get you by.
Key commands
| command | action |
|---|
| [ESC] | Exit a mode or cancel a compound command |
| i | Enter insert mode |
| r | Enter replace mode |
| : | Enter command line mode (see below for command line commands) |
| dd | Delete a line |
| yy | Copy a line |
| P | Paste a previously copied/deleted line |
| J | Join current line with next line |
| u | Undo last command |
| [CTRL] R | Redo last command |
on the vi command line
| command line | action |
|---|
| q | Quit |
| q! | Really quit |
| x | Save and quit |
| x! | Really save and quit (for read-only files) |
| g/pattern1/s//pattern2/g | Global replace pattern1 with pattern2 |
| set nu | Turn on line numbers |
| set nonu | Turn off line numbers |
| set ic | Set searching to be case insensitive |
Searching
| /regular exp | Do a regular expression search |
| :set ic | Set searching to be case insensitive |
