Navigate text with vi(m) keys on linux

Intro:

  Lifehacker recently posted a AutoHotkey script for windows that allows text navigation using letters instead of the arrow keys. In response to @wersdaluv's post, I wrote a very simple script that allows users to navigate text using the standard vim keys (hjkl) when the caps-lock key is toggled. Feel free and add to my very basic script

Steps:

1. Download my script (via copy and paste) from here.
2. Save the script somewhere where you will not delete it and mark it as executable (chmod u+x /path/to/script.sh)
3. Add  the script to the startup programs with the argument init (i.e. /path/to/script.sh init). If you don't know how to add startup programs in your Desktop Environment, Google it.
4. Assign F13 (the now remapped capslock key), as a hotkey in your window manager. Set the command to '/path/to/script.sh toggle'. Again, if you don't know how to add a hotkey, Google it.
5. Now either log out and then in or run '/path/to/script.sh init' in order to remap the capslock key.
6. Pressing the capslock key should now toggle navigation mode.