Changing file permissions gives precise control over who can read or write to a file or directory, or who can execute a script or program. Let’s learn how to control these settings from the command ...

However, if you want to reinstall the operating system, you won’t be able to preserve your settings or all of your files ... move your Home folder to a separate partition (or location). Good to know: ...

Linux or Mac OS X only: The Command-Line Fu web site writes up a quick-and-dirty trick to move files and create a symlink in a single command—so you can move files without breaking anything.