Please help me

[SirSmart]

Please help me
I'm from Brazil and I need to know how to find the beginning of a system developed in C + +. Anyone have any tips, because I have many files and do not know how to build the system.

thank you

[ne555]

I really don't understand what you want.

how to find the beginning of a system developed in C + +

$ grep -Rn main *

how to build the system

$ make