ccsm command is compizconfig-settings-manager. It is used for configuring various Linux / Unix desktop effects using compositing window managers for the X Window System and OpenGL.
Read full blog post: "Debian Linux 6: Install and Configure Compiz Eye Candy Effects"
Linux pidstat Command: Get Statistics For Individual Tasks / Process 
Debian Linux 6: Install Nvidia Proprietary Unix Driver 
Debian Linux 6: Install and Configure Compiz Eye Candy Effects
Linux / UNIX Desktop Fun: Interactive Aquarium
Download Slackware 14.0 CD / ISO Images
ls* Commands Are Even More Useful Than You May Have Thought
Solaris / Linux: nicstat Command Show Network Interface Card Statistics 
5 Linux / Unix Commands For Connecting To The Serial Console
Debian Linux Install Avant: A MacOS X Like Panel for GNOME Desktop
Debian Squeeze: Install Emerald Windows Decorator And Theme Manager