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sudo chmod systemctl enable rc-local... What do you think that command is supposed to do?sudobasically means "run as root" (I.E., the System account, if you're used to Windows accounts, which is even more powerful than the Administrator account). the second part is the command to run,chmod, which changes file level permissions of the filenames listed. So the final parts,systemctlenableandrc-localare not being treated as commands--they're being treated as three filenames forchmodto operate on. Which does not match what you say you think it does.rsyncfor this? It has many options to do exactly that in many different ways. And the las part, you wan to make sure i is run continuously. How do you define continuously? Each microsecond? Each millisecond? Each second? Or is once a minute good enough?