In Linux, a Process must to go from process state R to process state Z
1. Process: In Linux, a process is an instance of a running program. It represents a program in execution, with its own memory space, system resources, and state.
2. Process State R (Running): This is a process state where the process is actively executing its instructions and using system resources.
3. Process State Z (Zombie): This is a transitional state a process enters when it has terminated (finished its execution) but has not yet been completely removed from the process table. A zombie process remains in this state until its parent process collects its exit status using the wait() system call. Once the exit status is collected, the process is removed from the process table, and its resources are released.
4. Terminate: To "terminate" a process means to end its execution, often due to its program reaching its defined end point or being explicitly killed by a user or another process. Termination involves releasing the process's resources and transitioning it to the Zombie state, where it awaits its parent process to collect its exit status.
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