Question: For Linux Operating System: Write a simple test program in C++ to find out PIDs of ALL ancestor (i.e., parent, grandparent ) processes of the

For Linux Operating System: Write a simple test program in C++ to find out PIDs of ALL ancestor (i.e., parent, grandparent ) processes of the current process or a given process specified by a PID. A parent process's PID of a given process pid can be found in /proc/$pid/status

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