Nroff

nroff
Original author(s)Joe Ossanna
Developer(s)AT&T Bell Laboratories
Initial releaseJune 12, 1972; 52 years ago (1972-06-12)
Operating systemUnix and Unix-like
TypeCommand

nroff (short for "new roff") is a text-formatting program on Unix and Unix-like operating systems. It produces output suitable for simple fixed-width printers and terminal windows. It is an integral part of the Unix help system, being used to format man pages for display.

nroff and the related troff were both developed from the original roff. While nroff was intended to produce output on terminals and line printers, troff was intended to produce output on typesetting systems. Both used the same underlying markup and a single source file could normally be used by nroff or troff without change.