Author: Unknown
Subject: status
Date: Sunday, 15 Nov 2020, 23:58:36

Why is the STATUS macro needed? when does it matter for execution of a command that the status >= 128? Wouldnt the program have already exited by then because this means that one of the system calls failed? 

Also, just to clarify, does a status between 1 and 127 mean a failed process but it wasn't killed?