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#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
int
main(int argc, char **argv)
{
pid_t pid;
int fd;
if (argc >= 2) {
fd = open(argv[1], O_RDWR | O_CREAT, 0644);
if (fd == -1) {
fprintf(stderr, "cannot open/create %s\n", argv[1]);
return 1;
}
}
pid = getpid();
printf("%d\n", pid);
fflush(stdout);
for (;;)
sleep(1);
return 0;
}
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