Vim
Usual Keybindings
:!
- Run a terminal command from within vim
40gg
- Go to line number 40
12k
- Move twelve lines up
daw
- Delete a word
das
- Delete a sentence.
:!read
- Read an external file into the current file under the cursor.
m<letter>
- create mark
<backtick><letter>
- go to previously created mark
Cool tips
By selecting text in visual mode, you can run a terminal command on that selection as input, with the output being put back into the current buffer.