hidden

Finder - Show all filename extensions

Finder - Copy selected path
    ⌘C

Shell - Paste path 
    ⌘V

Shell - Show hidden files in list view
    ls -lart

Finder - Toggle hidden files
    ⌘⇧.

Vim - Cursor movement
    h j k l

iTerm2 - Color presets

Shell - Show current directory
    pwd

iTerm2 - Reuse previous session's directory

iTerm2 - Split pane
    ⌘⇧D
    ⌘D

iTerm2 - Go to other pane
    ⌘[
    ⌘]

iTerm2 - Close pane
    ⌘W

iTerm2 - Toggle full screen
    ⌘↵

iTerm2 - Toggle maximize a pane
    ⌘⇧↵

Shell - Exit
    ^D