These commands are essential when you're working with files and directories.

How early DOS command-line skills helped me climb the Linux learning curve.

While not as polished as it appears on the surface, the free, highly customizable Ubuntu operating system serves as an excellent introduction to Linux, installing easily and running well.

Abstract: This paper presents the simultaneous attitude and position control of rigid bodies using the unit dual quaternion. A dual quaternion is a compound of a unit quaternion and a translational ...

Moving platform.

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