Add ‘English (Upside down) language to Zebra

zebra_en_ud.sh

#!/bin/bash

# Downloader for the 'English - Upside Down' language for Zebra.
# Have fun!

ZEBRA='/Applications/Zebra.app/en-UD.lproj'

if ! which curl >> /dev/null; then
    echo 'curl is not installed, pls install :('
    exit 1
fi

if ! mkdir $ZEBRA; then
    echo "could not create $ZEBRA, are you root?"
    exit 1
fi

if ! curl -sLo "$ZEBRA/Localizable.strings" 'https://github.com/wstyres/Zebra/blob/master/Zebra/en-UD.lproj/Localizable.strings'; then
    echo 'could not download localised strings, check your Internet connection?'
    exit 1
fi

echo 'done! enter Zebra, and change the language to English (Upside Down).'