#include <unistd.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
int main()
{
    int fd;
    if(0>(fd = open("DELETED", O_CREAT|O_RDWR|O_CLOEXEC, 0600))) return perror("open"),1;
    static char const msg[]="got men";
    (void)write(fd, msg, sizeof(msg));
    if(0>(unlink("DELETED"))) return perror("unlink"),1;
    char buf[128];
    sprintf(buf,"cat /proc/%ld/fd/%d", (long)getpid(), fd);
    system(buf);

}