file permissions

After transferring files from a MacBook Pro to an external hard drive to my iMac, some of my file permissions are problematical. Both computers were and are running Catalina 10.15.7. Figure 1 shows the sharing and permissions from my Home Folder. Some, but not all, of the next level down...

Hello, I have an Airport TimeMachine that I used to use to backup a Windows PC. I no longer have the PC and would like to delete the backups as I have no use for them anymore. Trying to delete from the finder gives me the following message: When I do Get Info on the folder I have full read /...

I was trying to uninstall some old software using Terminal and got this message: sudo: no valid sudoers sources found, quitting sudo: unable to initialize policy plugin Uninstallation stopped. I did a little research and found it likely that the permissions on my sudoers file are set wrong. I...

Our family has 2 iMacs and I want us to be able to use either one of them and have access to all of our files the same way as if they were on a local drive / DAS. So, I bought a QNAP Thunderbolt NAS (perhaps overkill ;-) because that's exactly one of the scenarios they advertise (having a NAS...

I had a weird issue with the app store and it was recommended I rename something in /var/private/folders (the zz directory) and move it to the trash. I did that, but now I can't delete it. It's not 'owned' by me, and nothing I do will let me get rid of it. I've got tons of linux experience...