1. You may be able to script something with the assistance of some third party tools but I'm not sure how. Perhaps trawl aminet for any command line screen res utilities. The active screen mode / prefs are stored in a file but from memory I think this is a binary file; I don't think it can be modified by hand/script.
2. No. Old versions of OpenSSH can probably be found in various states online but I've never had any luck with this. The best option I found was AmTelnet (
http://aminet.net/package/comm/tcp/amtelnet.lha) but a) you'll need to track down a licence/key and b) it's limited to SSHv1 so you'll need to specifically enable this on the server.
3. AmiTCP (a port of the BSD IP stack?) comes with a standard command line 'ftp' (plus other useful commands, 'ls', 'ifconfig' etc). Whilst you're using the UAE magical IP stack it may be worth installing (or part installing) AmiTCP v4 to gain some sensible command line tools. Alternatively, aminet is your friend.
4. Unlikely. If you have telnet/ssh isn't it easier to ssh and use vim? Also, I suggest you install vim under AmigaOS too
5. No idea what this is...
6. Probably
http://wiki.amigaos.net/wiki/Tutorials:Main but I'm unsure if there's any native AmigaOS XML libs.
Also, if you're doing most of your work under Linux, installing an X server under AmigaOS and running Linux apps remotely may be the nicer solution. Although, this is better if using a real Amiga - otherwise you may as well just do the same (Xming, CygWin?) under Windows or better still just install Linux.
Others may have better suggestions, though
