View source for Perform basic file edits using an editor

== vi/vim - Visual editor==

Mode switching:
i: Enter insert mode at cursor
o: Open new line below cursor and enter insert mode
a: Enter insert mode after cursor
ESC: Return to command mode

Navigation:
h: Move left
j: Move down
k: Move up
l: Move right

Saving and exiting:
ZZ: Save and exit
:w!: Force save
:q!: Force quit without saving
:e!: Reload file, discarding changes

Editing:
c: Change (delete and enter insert mode)
d: Delete
p: Paste after cursor
y: Yank (copy)
dd: Delete entire line
yy: Yank entire line

Searching:
/pattern: Search forward for pattern
?pattern: Search backward for pattern
n: Move to next search result
N: Move to previous search result

== Switching editors:==
EDITOR environment variable sets the default editor
Example: export EDITOR=nano

== nano - Simple text editor==
Example: nano file.txt

==emacs - Extensible text editor==
Example: emacs file.txt