Enable terminal text navigation keyboard shortcuts across entire OS X operating system

DefaultKeyBinding.dict

/* Create a new file at ~/Library/KeyBindings/DefaultKeyBinding.dict */
/* and copy/paste this into it. */
{
        "~f"="moveWordForward:";
        "~b"="moveWordBackward:";
        "~<"="moveToBeginningOfDocument:";
        "~>"="moveToEndOfDocument:";
        "~v"="pageUp:";
        "~d"="deleteWordForward:";
        "~^h"="deleteWordBackward:";
        "~\010"="deleteWordBackward:"; /* Alt-backspace */
        "~\177"="deleteWordBackward:"; /* Alt-delete */
}