CFEngine defines a number of variables for embedding unprintable values or values with special meanings in strings.

const.dollar

```cf3 reports:

   # This will report: The value of $(const.dollar) is $
   "The value of $(const.dollar)(const.dollar) is $(const.dollar)";

   # This will report: But the value of $(dollar) is $(dollar)
   "But the value of $(dollar) is $(dollar)"; ```

const.endl

```cf3 reports:

  "A newline with either $(const.n) or with $(const.endl) is ok";
  "But a string with \n in it does not have a newline!"; ```

const.n

```cf3 reports:

  "A newline with either $(const.n) or with $(const.endl) is ok";
  "But a string with \n in it does not have a newline!"; ```

const.r

```cf3 reports:

  "A carriage return character is $(const.r)"; ```

const.t

```cf3 reports:

  "A report with a$(const.t)tab in it"; ```