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  1. #include <stdio.h>
  2. #include <sys/types.h>
  3. #include <unistd.h>
  4. #include <sys/wait.h>
  5.  
  6. int main()
  7. {
  8.     pid_t pid = fork();
  9.  
  10.     if (pid == 0)
  11.     {
  12.         // Child process
  13.         printf("Child Process: PID = %d, PPID = %d\n", getpid(), getppid());
  14.         sleep(2); // Simulate some work
  15.         printf("Child completed\n");
  16.     }
  17.     else if (pid > 0)
  18.     {
  19.         // Parent process waits for child to finish
  20.         wait(NULL);
  21.         printf("Parent Process: PID = %d, Child completed\n", getpid());
  22.     }
  23.     else
  24.     {
  25.         printf("Fork failed\n");
  26.     }
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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Child Process: PID = 3278088, PPID = 3278085
Child completed
Parent Process: PID = 3278085, Child completed
https://ideone.com/0crMz8
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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