rem: { printf ("usage:\thd [-n N] [file]\n"); puts ("\t-n expects a number between 1 and 16 and specifies"); puts ("\tthe number of bytes between spaces."); puts (""); puts ("\tIf no file is specified, input is read from stdin"); }
add: { printf ("Usage:\thd [-n N] [file]\n"); printf("\t-n expects a number between 1 and 16 and specifies\n"); printf("\tthe number of bytes between spaces.\n"); printf("\n\tIf no file is specified, input is read from stdin\n"); }
context: usage ()	{	printf ("usage:\thd [-n N] [file]\n");	puts ("\t-n expects a number between 1 and 16 and specifies");    puts ("\tthe number of bytes between spaces.");	puts ("");    puts ("\tIf no file is specified, input is read from stdin");	}