>im studying programming fundamentals..
Then why are you learning C?
>pls can u give me some definition and information about c language
Get a good book. Online tutorials have a tendency to suck ass. A good tutorial/reference book is The C Programming Language by Kernighan and Ritchie.
Well from the basic's C is well one of the most flaxible language's with almost every person in this forum looking at it, almost every day. Well some of us. Now I wouldnt say C is based on commands. But more of what you tell it to do using variable's, interger's, floating points ETC. The # 1 used instruction you will give it is #include <the library you choose.h, which is most likey stdio.h, or stdlib.h. Abbrivation of coarse. Lasy programmers!. stdio means standard input/output, stdlib means standard libary. Tere are a lot of librarys i can not get in to at this moment. Also with C, everything needs a function printf(), main() etc etc. lol. You will learn more of that in class or book's. Heres a basic set up.
printf(hello sexy); /*this is a comment. thjese make a program easier to read when needing edit's. The /, make it so that the program wont read it as a sequence. All programs, and lines of code have to produce and ending sequence. In C that is ;. Other wise C would keep going producing a syntax error, because it is a computer and doesnt know what to do. lol =) */