I know how to use printf but where can I find a manual with all the arguments to stick into the printf() function? the language is C (I'm not sure if any arguments are specific to C?? )
Google could be a good choice. Maybe this http://www.cplusplus.com/reference/clibrary/cstdio/printf.html It's c++ but it's good enough
What are you using printf for? I never use printf anymore and always use streams. I.e. if you want to put some text then a variable into a new variable you can do std:stringstream newvar; newvar << "Hello your name is " << name; Its much easier than printf.
Streams are for C++, and he/she is asking for C. Also, even on C++ if you want to format is some special way (leading zeros, adding plus sign, ...) IMO is easier with sprintf than with streams+modifiers.