[CentOS] Slightly OT: How to learn UNIX

[John R Pierce]

Ugo Bellavance wrote:
> Hi,
>
>     I was wondering what would be the best way to learn AIX, Solaris, 
> or HP-UX, for someone who knows Linux very well?  Books?  Courses? 
> Self-teaching in a home lab?

note that those three are /completely/ different from each other, 
especialyl when it comes to administration things.   AFAIK, AIX and HPUX 
only run on IBM pSeries power servers and HP PA-RISC/Itanium servers 
respectively, while Solaris can be run on either Sun UltraSparc or x86 
stuff.