23 lines
		
	
	
		
			401 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			401 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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int main()
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{
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  if (fork() == 0)
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  { // child proc
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    printf("%d: child created by parent %d; executing 'p4'...\n", getpid(), getppid());
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    execl("p4", "p4", NULL);
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  }
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  else
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  { // parent proc
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    printf("%d: parent process\n", getpid());
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  }
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  fork();
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  printf("%d: terminating\n", getpid());
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  wait(NULL);
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}
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