Have to run 'sudo chmod 666 devvideo' after reboot

Jetson Nano Auto Run sudo chmod when Power Up chmod 666 I did chmod 666 on my dev directory Is there an easier way to undo this than reinstalling? Top User avatar chmod 666 What is the difference between chmod 644 and chmod 666 and chmod 600 for outputtxtdat on websiteapache server? Little confused, in terms of security, and

autobet autobet 666 I wanted to ftps some files to Movies but I could not get in, so i sudo chmod 666 for Movies and Music Now the directories are