linux.conf.au, January 2003
      PRINCIPLES: The Kernel Tree

                  linux-2.5.59
                       |------ Documentation
                       |------ arch
                       |       |------ ...
                       |       |------ i386
                       |       |       |------ boot
                       |       |       |       |------ compressed
                       |       |       |       `------ tools
                       |       |       |------ kernel
                       |       |       |------ lib
                       |       |       |------ math-emu
                       |       |       `------ mm
                       |       |------ ...
                       |------ crypto
                       |------ drivers
                       |------ fs
                       |------ include
                       |       |------ ...
                       |       |------ asm-i386
                       |       |------ ...
                       |       |------ linux
                       |       |------ ...
                       |------ init
                       |------ ipc
                       |------ kernel
                       |------ lib
                       |------ mm
                       |------ net
                       |------ scripts
                       |------ security
                       |------ sound
                       `------ usr