What Os Should I Install?

Thanks.

Please see the FAQ section of the website.

If you want Unix and not unix-like OS I would suggest Solaris or one of the free BSD variants.

what i recommend is to learn sed and awk before jumping into unix of any kind. this will give you a good background on how things work in general. i am learning it on my windows 2000 computer runnnig cygwin. im trying netbsd now. it seems very clean, traditional and uncluttered. thats what i like

I disagree. My opinion is that the only way to learn is to be in a position to use the OS as you learn. For example cygwin is GNU/Linux emulation, not Unix emulation.

If you want to learn Unix, it is best to learn in a plain Unix environment, without GNU extension and then if you want to add the gnu stuff afterwards that is up to you. Learning on Unix with "traditional" versions of programs like sed & awk makes you abilities much more portable.

Firstly I would say search this site this has been answered many times over in the past.

Secondly, get a book and get the O/S you want then installthe O/S and read the book and play around!