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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.         printf("Child Process: PID = %d, PPID = %d\n", getpid(), getppid());
  13.         sleep(2); 
  14.         printf("Child completed\n");
  15.     }
  16.     else if (pid > 0)
  17.     {
  18.         wait(NULL);
  19.         printf("Parent Process: PID = %d, Child completed\n", getpid());
  20.     }
  21.     else
  22.     {
  23.         printf("Fork failed\n");
  24.     }
  25.  
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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Child Process: PID = 3277394, PPID = 3277391
Child completed
Parent Process: PID = 3277391, Child completed
https://ideone.com/3mBfXo
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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