MacOS: Vertically Maximize All Open Windows

resize_mac_vertical.osascript

#! /usr/bin/env osascript

## Vertically maximize all open windows.

tell application "Finder" to set BNDS to (bounds of window of desktop)
set DESKTOP_HEIGHT to item 4 of BNDS

tell application "System Events" to repeat with P in application processes whose background only is false
  tell application "System Events" to tell P
    repeat with WIN in windows of P
      if the value of attribute "AXMinimized" of WIN is false
        tell WIN
          set {X, Y} to position
          set {W, H} to size
          set position to {X, 0}
          set size to {W, DESKTOP_HEIGHT}
        end tell
      end if
    end repeat
  end tell
end repeat