Permissions errors on change of user account name [_unknown user]

I don't know the exact command, but you should be able to change the permissions for all files inside a folder recursively. Just looking up chmod documentation and it should probably have a recursive option somewhere. Basically, you use this command on your library folder and looks through all of the files in that folder, and within subfolders (it goes down the directory hiearchy) and changes all files to the specified permissions. That should do the trick.

 

It's possible that an ACL was set on the Applications folder, and since those apply recursively to the files inside the folder, unless you override them, it would explain the behavior you're seeing. Try doing the following two commands, and tell us what it says for the Applications folder:

Code:

cd /
ls -al

The first line just changes the working directory to the root directory, the second should print a list of the files and folders there, with the full permissions listing. I don't know how familiar you are with them, feel free to copy and paste the results here, but the key is whether there is an @ or + symbol at the end of the permissions listing for the Applications folder.

jW