Linux API(?)

[lszk]

I try to find a list of all function and all headers in Linux. It means, not in standard library. In unistd.h, fcntl.h etc.
If somebody have that link(s), please paste in here

[yop]

Though your question is too generic try these:
http://www.advancedlinuxprogramming.com/downloads.html
http://www.tldp.org/LDP/lpg/index.html

[wysota]

Look at manuals from sections 2 and 3. These explain system calls and standard library calls. /usr/share/man/man{2,3} is a good place to have a list of those.