% cc [options] filenames [libraries]...
options represents one or more of the options described in Table A–15.
filenames represents one or more files used in building the executable program
The C compiler accepts a list of C source files and object files contained in the list of files specified by filenames. The resulting executable code is placed in a.out, unless the -o option is used. In this case, the code is placed in the file named by the -o option.
Use the C compiler to compile and link any combination of the following:
C source files, with a .c suffix
Inline template files, with a .il suffix (only when specified with .c files)
C preprocessed source files, with a .i suffix
Object-code files, with .o suffixes
Assembler source files, with .s suffixes
After linking, the C compiler places the linked files, now in executable code, into a file named a.out, or into the file specified by the -o option. When the compiler produces object code for each .i or .c input file, it always creates an object (.o) file in the current working directory.
libraries represents any of a number of standard or user-provided libraries containing functions, macros, and definitions of constants.