I have been working with some functions from windows API and now I need to find similar set of functions for Linux. Actually I need functions for Linux that will pretty much do the same or similar thing. I have been searching on google trying "Linux API" , but I couldn't find any centralised database of functions offered for Linux. Now not to be missunderstood I am aware of fact that Linux doesn't have it's own API that comes with certain distributions, and it should be installed as additional package or something. The functions I was using in WIN API are following:
If you can't help me I would be thankful for link to some good Linux programmers comunity.