Published at LXer:

If you can't access some of the files on your very own Linux system, it's usually because of misconfigured file access permissions. If you are the only user on your Linux box, you may be wondering what's the point of having all these permissions (or lack thereof) that restrict your access to your own files. However, before pulling your hair off, you must keep in mind Linux is designed to be a multi-user environment. In an environment with more than one user, it is crucial to have a secure system for deciding which files are yours and who can fiddle with them.

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