![]() This was started from kernel version 2.5. On Linux System there is a limit to the maximum number of processes to run. ![]() As we know INIT is the first process that get’s started and it is also the parent of all other processes in Linux. That’s why PID number 1 is given to it and process id always starting from 1 in Linux. Why INIT gets the same PID number each and every time?Īnswer is init is the first program that’s run on Linux System. Process id 1 is always reserved for init process. It is unique to each and every processes running on the Linux System. It is an identification number that is automatically assigned to each process when it is create on Linux System. PID has 16 bit number’s that are sequentially assigned to different processes on after the other.Īfter process execution, the process id number released from the process table for reuse. Process ID is a unique identification number which is used to identify a particular process in Linux. In this article we will learn what is Process ID / PID in Linux. Why INIT gets the same PID number each and every time?. ![]()
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