Installs screensaver depending on screen aspect ratio

[MacOS] Screensaver Installer

#!/bin/sh
cd "$(dirname "$0")"

clear
echo "Installing screensaver ..."

NORMAL_ARCHIVE=files/Mac_Screensaver_QXGA.zip
WIDESCREEN_ARCHIVE=files/Mac_Screensaver_FHD.zip
SCREENSAVER_FILENAME="MyScreensaver.saver"

RESOLUTION=$(system_profiler SPDisplaysDataType | grep Resolution | sed 's/.*Resolution: //' | head -n 1)

WIDTH=$(echo $RESOLUTION | sed 's/ x.*//')

HEIGHT=$(echo $RESOLUTION | sed 's/.* x //')
RATIO=$(echo "scale=2;($WIDTH/$HEIGHT*100)" | bc)

if [ ${RATIO%.*} -gt 150 ]; then
	unzip -o $WIDESCREEN_ARCHIVE -d ~/Library/Screen\ Savers/ > /dev/null
else
	unzip -o $NORMAL_ARCHIVE -d ~/Library/Screen\ Savers/ > /dev/null
fi

defaults -currentHost write com.apple.screensaver modulePath -string "~/Library/Screen Savers/$SCREENSAVER_FILENAME"

clear
echo "Installing screensaver ... Done."

open /System/Library/Frameworks/ScreenSaver.framework/Versions/A/Resources/ScreenSaverEngine.app