On the subject of how to maintain a Debian system (and thanks to those who responded previously), I am looking for the best source on how to become a power user of apt / dpkg / dselect. Is it the unfinished Admin guide in the DDP or the /usr/doc files or where ...? I am a realative newcomer to Debian and Linux but have always been able to sort out my technical issues and would like to become self-sufficient and RTFM. Thanks, Andrew MacKenzie