Linux distributions vary widely in how they come configured. For example, Ubuntu doesn't allow you to use the root user out-of-the-box. You can only operate superuser commands using the sudo command.

Some directories can only be used by root. Examining directories To see the details (permissions and such) for a directory itself, you need to use a command like “ls -ld bin”.

Useful commands for Linux beginners can help you get comfortable on the command line.

Learn the basics of directory management in Linux using the command line tool.

I think this is for the commands that you can execute in the terminal. Open it up and check out the commands and play with them. <BR><BR><B>/root</B> -- only accesible under root permission.

A vulnerability has been discovered in the Linux sudo command that could allow unprivileged users to execute commands as root. Thankfully, this vulnerability only works in non-standard ...