How many digits is the linux process id?

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Release: 2023-07-07 11:54:11
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Linux process ID is represented as a 32-bit unsigned integer. The process ID is dynamically allocated when the process is created and will not be reused until the system is restarted.

How many digits is the linux process id?

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux systems, the process ID (PID) is a non-negative integer used to identify each running process.

In modern Linux systems, the process ID is usually represented as a 32-bit unsigned integer.

PID ranges from 0 to 2^32-1 (4294967295), where 0 is reserved for system processes (such as the init process), while other PIDs are assigned to user processes. The process ID is dynamically assigned when the process is created and is not reused until the system is restarted.

It should be noted that some older or special Linux distributions may use different PID representation methods, such as 16-bit PID. However, most current Linux systems support 32-bit PIDs.

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