What's cdbiff? cdbiff is a tool for notifying you of mail arrival using a CD-ROM drive. cdbiff execute `eject' command to eject a CD-ROM tray when mail arrives. Usage cdbiff is written in Ruby. It works with Linux. Usage: cdbiff [OPTION] -f, --file=FILE Monitor FILE [/var/mail/$USER] -c, --command=COMMAND Execute COMMAND when mail arrives [eject] -i, --interval=SECONDS Monitor at intervals of SECO