显示当前进程的UID与EUID

#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>

int main(void){
 printf("Current process UID : %ld\n",(long)getuid());
 printf("Current porcess EUID : %ld\n",(long)geteuid());

 return 0;
}

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