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Shell-Script-interview-questions-intermediate-->View question

Can you tell something about the Zombie Processes in shell scripting?

Can you tell something about the Zombie Processes in shell scripting?


Asked On2019-06-18 16:08:10 by:gokilapriya

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A ZOMBIE process is NOT something you want in your system.
It is a process that crashed and which is robbing memory space and/or CPU cycles.
They are detached from any terminals or processes that has launched it in the first place and are hard to kill. sometime only a reboot can get rid of it.
C programme for a Zombie process:
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
int main ()
{
  pid_t child_pid;
  child_pid = fork ();
  if (child_pid > 0) {
    sleep (60);
  }
  else {
    exit (0);
  }
  return 0;
}

Answerd on:2019-06-26 Answerd By:KAPILJHADE

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A zombie process is a process whose execution is completed but it still has an entry in the process table. Zombie processes usually occur for child processes, as the parent process still needs to read its child’s exit status. Once this is done using the wait system call, the zombie process is eliminated from the process table. This is known as reaping the zombie process.
Answerd on:2021-12-23 Answerd By:shwet0710

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