What happens when you type gcc main.c

gcc “Gnu Compiler Collection” is a tool that support many compiled languages as C, C++, Java. It is used to translate/transform from human reading language to binary processor language.

when you type gcc main.c, gcc assume that your code is in a file named main.c.

the compilation process include 4 steps :

• Preprocessor : Preprocessor is just a text substitution tool.
• Compilation : Transform the code into assembly code.
• Assembler : Convert the code into binary code.
• Linker : Link together object files into a binary executable

Without any option, the binary output is named “a.out”.