1 static char *sccsid = "@(#)rewind.c 4.1 (Berkeley) 10/01/80"; 2 /* rewinds mag tape drive */ 3 main(argc,argv) char**argv; { 4 char *f; 5 int fd; 6 7 if (argc > 1) f = argv[1]; 8 else f = "/dev/mt0"; 9 10 fd = open(f,0); 11 if (fd < 0) printf("Can't open %s\n",f); 12 else close(fd); 13 } 14