UNIX 7th Ed. - /usr/src/cmd/standalone/cat.c

   1: main()
   2: {
   3:     int c, i;
   4:     char buf[50];
   5: 
   6:     do {
   7:         printf("File: ");
   8:         gets(buf);
   9:         i = open(buf, 0);
  10:     } while (i <= 0);
  11: 
  12:     while ((c = getc(i)) > 0)
  13:         putchar(c);
  14:     exit(0);
  15: }

Defined functions