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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <sys/types.h>
  4. #include <unistd.h>
  5.  
  6. int main(void)
  7. {
  8.     int pid,x=2;
  9.     if (0 == (pid =fork())) {
  10.         fork();
  11.         pid=fork();
  12.         if (pid==0) {
  13.             x--;
  14.         }
  15.     }
  16.     else{
  17.         printf("aki\n");
  18.         execl("bin/date", "date",0);
  19.         x=x+2;
  20.     }
  21.  
  22.     printf("pid=%d, x=%d\n", pid,x);
  23.     exit(0);
  24. }
Success #stdin #stdout 0s 4476KB
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stdin
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Standard input is empty
stdout
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aki
pid=25659, x=4
pid=25661, x=2
pid=0, x=1
pid=25662, x=2
https://ideone.com/pNx6xp
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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