#include <stdio.h>
#include <unistd.h>
int
main(int argc, char *argv[])
{
if (getopt(argc, argv, "") != -1 || optind != argc - 1) {
fprintf(stderr, "usage: unlink <file>\n");
return 1;
}
if (unlink(argv[optind]) != 0) {
perror("unlink");
return 1;
}
return 0;
}