Basic RATS Rules Basic RATS Rules RATS uses commands which it refers to as 'instructions'. RATS programs may typed in upper or lower case, except for filenames. Since UNIX is case-sensitive, filenames must be typed exactly as they appear in the UNIX directory listing.
Options appear immediately after a instruction, always in parentheses.
The parentheses in which options are placed must begin immediately after the instruction name to which they apply. There must not be a space between the instruction and the open parenthesis containing options. Options are separated by commas. Instructions may be of any length, and do not need to begin in column 1.