| | Command | Description |
| Navigation | | |
| | list all devices (entire tree) | dev / ls |
| | list all aliases | devalias |
| | list directory contents | dir hd:\ |
| | | dir /ht/pci@2/usb@b,1/disk@1:,\ |
| | | dir /ht/pci@3/firewire@e/node@/sbp-2@4020/disk@0:,\ |
| | eject optical disc | eject cd |
| Booting | | |
| | boot with default settings | mac boot |
| | boot from optical disc | boot cd |
| | boot from USB device | boot ud |
| | boot from specific path | boot /ht/pci@2/usb@b,1/disk@1:,\install\yaboot |
| NVRAM settings | | |
| | print settings | printenv |
| | change settings | setenv boot-device mac-io/ata-4@1f000/@0:2,\System\Library\CoreServices\BootX |