Change your Retina Mac's screen scale from the Terminal!

scaler.sh

#!/bin/bash
#An Applescript embedded in a shell script so I can do this on the command line. Sorry.

#Don't put this on a non retina Mac. Bad Things™ will happen.

#by @tomcatterall/@ares (Twitter/App.net). Say something nice to me if you use and like this, I'd love to know.

echo 'on run argv
  try
		set theDisplayArgument to item 1 of argv as number
	on error
		return "

Scaler. Scale your Retina display from the Terminal!

Usage:

1 is Larger Text (hangovers), 5 is More Space (Xcode), 3 is gravy, and there are some numbers in between.

"
	end try
	if theDisplayArgument < 1 or theDisplayArgument > 5 then
		return "Pick a number between 1 and 5."
	end if
	tell application "System Preferences"
		activate
		set the current pane to pane id "com.apple.preference.displays"
		reveal anchor "displaysDisplayTab" of pane id "com.apple.preference.displays"
	end tell
	
	tell application "System Events"
		click radio button "Scaled" of tab group 1 of window "Color LCD" of application process "System Preferences" of application "System Events"
		click radio button theDisplayArgument of radio group 1 of group 1 of tab group 1 of window "Color LCD" of application process "System Preferences" of application "System Events"
		if theDisplayArgument = 1 then
			click button "OK" of sheet 1 of window "Color LCD" of application process "System Preferences" of application "System Events"
		end if
	end tell
end run'|osascript - $1

An Applescript embedded in a shell script so I can do this on the command line. Sorry.

I came across this the other day and I know it's been 7 years since you posted this gist and so you probably don't use this script at all any longer, and you might already know this by now but I just wanted to point out that instead of wrapping your AppleScript in a shell script you can just make the shebang invoke osascript directly, same way that I do in this simple little AppleScripts here: https://github.com/ctsrc/applescripts/blob/cea8ebdedf72989feeb2da378872d154d827bc58/bin/photoshop_save.scpt