What command will uninstall a package but leave its configuration files in case a package is re- installed?

What is a reasonable command to uninstall a Debian package from your system?

You have a USB storage device that you cannot get working. You have enabled all appropriate USB options in the latest 2.2 kernel but still cannot get your device
working. What is most likely the source of the problem?

Which of the following commands will list the quota for the user foobar?

Which command will print out the attributes of the file foobar?

When you are looking for brief information about a program in your PATH with its associated man pages, you would use?

You enter the command date +%M. What does the output show you?

Which command will print line numbers before each line in a file?

You have read/write permission on an ordinary file foo. You have just run ln foo bar. What would happen if you ran rm foo?

You are logged in as user tux1, but now you want to switch users to tux2 with tux2’s environment.
How would you do this?