The above link may help. I have found it to be extremely useful when I was learning the language.
As for commands, there are not commands as such, merely keywords which you use.
For example, here is a simple "Hello World!" program in C++.
int main (int argc, char* argv)
I strongly recommend getting a book, or at least looking at some online tutorials.
C++ does actually do a little bit more memory management for you, but you must still do most of it unlike in languages like Java.
C++ is a very wide ranging language which has all manner of add-ons and external libraries you can use, but it can also get hellishly complicated later on. It may take you years to master it [as I have not, I must add; I am far from being an expert but am well versed in the basics], but good luck to you.