About the pid of the process

Question

I\'ve a somewhat silly question, if i have a series of processes that are created ... these are not necessarily some sort of inheritance, the pid of the processes have to be

Answer 1

On Linux, pids are generally allocated sequentially on a system-wide basis, but they will wrap around periodically, and there may be 'gaps' caused by other unrelated processes. In an extreme case, you might have a 'gap' wide enough to cause this wrap-around. So don't assume any particular ordering - instead explicitly keep track of your parent or child process' PIDs.