I am a self made developer developping in C and Perl what I do not find on the market (including a multimachine QNX based interopeating system, a internet generators to manage thousands of sites, DNS entries, dedicated roots, a light ccTLD generic NIC). I have big holes in my computer culture.
I am interested in network management/architecture and therefore in solutions/tools which can be managed by crons and scripts. My favorite platform is DOS, having difficulty to recall Linux commands and lack of the source of my pet editor to port it to Linux. (the old QNX editor "qed" ported under DOS for decades: as long as Linux has not it I will not be able to develop seriously under an OS lacking such a simple marvel (IMHO))