#!/bin/bash
echo "Activate and initiate RTC-HW-clock..."
echo "Current system date time is:" $(date)
echo "Adding RTC to list of new I²C devices..."
sudo bash -c "echo 'ds1307 0x68' > /sys/class/i2c-adapter/i2c-1/new_device"
echo "RTC is currently set to:" $(sudo hwclock -r)
echo "Setting current date/time in RTC clock..." $(sudo hwclock -w)
echo "RTC is now set to:" $(sudo hwclock -r)
echo "Tell system to sync system time with RTC..."  $(sudo hwclock -s)
echo "System is running now with HW clock and current date/time is:" $(date)
echo "Done!"