Mcmp cmp.c /^main(argc, argv)$/ cmp cmp.c /^cmp()$/ endoffile cmp.c /^endoffile(filename)$/ error cmp.c /^error(filename)$/ otoi cmp.c /^otoi(s)$/ skip cmp.c /^skip(dist, fd, fname)$/ usage cmp.c /^usage()$/