v0.1.1
Download the script and fill out the information in the variables block.
Save the file into /etc/ (That's where mine is located).
Set the file to permissions of 700.
chmod 700 /etc/ip-updater
Add a cronjob in your crontab.
crontab -e
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /etc/do-ipupdate
Keep an eye on the log file to make sure it works :)