How to learn unix programming
 

Hai,
I am new to linux and willing to learn unix programming. I know a little about shell programming. Is the unix programming and shell programming are the same? What is the difference in those two. Apart from shell how many different programming types are there in unix.

Please help me by telling how to learn unix programming. Please suggest me some books and web-sites to learn about unix programming. Are there any certification courses in unix programming?

There are the same languages you would find on just about any os, I would suggest you read the art of unix programming, by Eric S Raymond. Unix programming is pretty much the same on any platform, barring os specific stuff

Have some fun with some of my old online courses:

http://cis68a.mikecappella.com/
http://cis68b1.mikecappella.com/
http://cis68c1.mikecappella.com/
http://cis68c2.mikecappella.com/

See the course Notes, Homework and Labs. Perhaps this will get you started before you picked up your new book. There are plenty of other sites online as well.

Unix programming was typically C programming to the Unix system call specifications, and some shell. Today C is ubiquitous, and so many platforms are POSIX compliant or Unix-like that the skills and basics transfer to many platforms.

Hi,
You can look at the 'Programming General & WEB' section of 'Slackware-Links'. More than just Slackware® links!

The section has a lot of useful links relative to programming. Loads of free online resource. If you choose 'C/C++' then you should be able to move between systems by learning the semantics & syntax for the system desired. Don't forget about 'Python' as a possible programming language. That's what is nice about GNU/Linux with the available compiler(s) and open documentation.

If you desire to learn shell scripting then I would look at 'Tutorials' section to get some 'BASH' scripting help.

Happy computing! :D