-Linux C Program

Fork and exec a hello world program in shared memory. Fork as many processes as 100. But do not let there be more than 20 running at a time. The main process should print a message when an interrupt signal (^C) is received. Your program should terminate after the specified amount of time of real clock. This can be done using a timeout signal, at which point it should kill all currently running child processes and terminate. It should also catch the ctrl-c signal, terminate all children, and free up shared memory and other ipc primitives prior to terminating itself.