IRIX and the SGIs

Where did you such cool machines appear from?

Hammersley Iron kindly donated a SGI O₂ and Indigo 2. These machines are very useful for 3D tasks -- especially OpenGL programming. They also seem to be used for Quake a lot.

Common commands give 'file not found'.

IRIX has a slightly different directory structure to Linux. You're probably missing '/usr/bsd' and '/usr/freeware/bin' from your path.