https://docs.oracle.com/cd/E86824_01/html/E54765/forkall-2.html
forkall - man pages section 2: System Calls
fork , fork1 , forkall , forkx , forkallx - create a new process The fork() , fork1() , forkall() , forkx() , and forkallx() functions create a new process....
man pagessectionsystemcalls