Hi folks, While I have asked/discussed this question in TDF group, but I thought to ask it in forums as well for more opinions. I am planning on learning Unix OS. [ Target is HP UX/Unix ]. However since you can't simply run HP Unix on non-iTanium CPUs so I am looking for something with similarity that can be run on Desktop hardware. From what I know HP Unix is a beast in itself and doesn't resemble any other OS very well. However , I would still love to try the nearest kin of it. Also some resources for learning would be appreciated. I am looking forward to learn the basics in 20 days time. On a side note : If someone among st you in working or proficient in HP UX, please do let me know. I have few queries revolving around it from career perspective. Thanks.