Quoting bruno berisso summers <laredb@hotmail.com>:

where I can reed a good guie about programing in UNIX? Thankes and sorry about mi inglish

I've tried learning another language, too, so don't apologize for your English. Since you used the term "guie" I believe you want something online. Since you said UNIX (not C, C++, Java, Perl, ...) I suggest you start with http://www.faqs.org/docs/artu/. It tells you everything you should know before rushing into anything. The author is one of the leading writers in the Open Source world. If that's too long for you, try http://www.luv.asn.au/overheads/prog/. It's the notes from a talk given by the writer. You asked a short question with a very long answer. Good luck getting started. Daryl