PATH field questions

Sorry for not batching these. There shouldn't be any more in the immediate future :) In PATH can anybody point me to: The meaning of the first 3 characters of the mode field. The meaning of rdev. Thanks, Matt -- Matthew Booth, RHCA, RHCSS Red Hat, Global Professional Services M: +44 (0)7977 267231 GPG ID: D33C3490 GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490