Backup and restore Xposed Framework during a Cyanogenmod upgrade.
Drop the script into /system/addon.d, set owner and group to root, and make it executable:
mount -o remount,rw /system mv /sdcard/81-xposed_framework.sh /system/addon.d/81-xposed_framework.sh chown root:root /system/addon.d/81-xposed_framework.sh chmod 755 /system/addon.d/81-xposed_framework.sh mount -o remount,ro /system