You can print a hard copy of a letter by piping a letter to a printer command. To do this, use the command form:
|number lp
at a mailx prompt. (The | symbol is called a pipe.) For example, to print a copy of letter 2, type:
& |2 lp |
and press Return. If a letter number is not specified, mailx pipes the current letter to the printer. For more information on piping, see "2.2.5 Redirecting and Piping Command Output".