On Wed, 11 Jan 2012, Richard Owlett wrote:

> I'm not literally moving in one step from CP/M to Linux.
> BUT, I think that may describe a needed change in mindset.

Richard,

   I'll say! I've not used CP/M since the late 1970s.

> I've spent a year lurking on several Linux related groups and browsing
> untold Linux related sites with emphasis on Debian and Ubuntu related
> pages. I have a 6 year old copy of _A Practical Guide to Red Hat Linux_ by
> Sobel and have just downloaded a pdf of _Slackware Linux Essentials_ .

> Demonstrate that I'm missing some underlying concept(s) common to all UNIX
> variants/derivatives.

   As I was told years ago, linux tools are easy to understand. The catch is
that there are thousands of tools.

   The ubuntus are highly GUI oriented and appeal to those raised on
Microsoft; they also hide a lot from the user; somewhat like a black box
that 'just works.'

   Red Hat, Slackware, and Debian are (or can be) more command line oriented
and similar in that regard to CP/M. You need to learn more about what's
going on under the hood. What you gain from this is a better understanding
of how things work and more control so you can make the system do as you
like, fix things that break, and better understand your tool.

   Years ago I had an introduction to linux book that explained the
underlying concepts. There are probably good resources on the Web.

   Start with understanding a system: kernel, tools, editors, etc. before
moving on to networking. Lots of good help here.

Rich

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