I've tried
sudo crontab -e then entered before
exit 0:
0 */12 * * * /home/pi/git/vthoang/cgminer/x1R606b.sh
This is for a continual 12hr reboot but doesn't work. Am I missing more code?
Try this to see if it reboots. It might be your script or a file permission issue.
0 */12 * * * reboot now
If you just want to restart the miner and not the whole system, you can use this script here:
https://bitcointalk.org/index.php?topic=5053833.msg48475209#msg48475209