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# Groff

For installation instructions see the Section called Installing Groff-1.19 in Chapter 6.

## Official Download Location

Groff (1.19):
ftp://ftp.gnu.org/gnu/groff/

## Contents of Groff

(Last checked against version 1.17.2.)

The Groff package includes several text processing programs for text formatting. Groff translates standard text and special commands into formatted output, such as what you see in a manual page.

Groff installs the following:

### Program Files

addftinfo, afmtodit, eqn, geqn (link to eqn), grn, grodvi, groff, grog, grolbp, grolj4, grops, grotty, gtbl (link to tbl), hpftodit, indxbib, lkbib, lookbib, mmroff, neqn, nroff, pfbtops, pic, post-grohtml, pre-grohtml, refer, soelim, tbl, tfmtodit, troff and zsoelim (link to soelim)

##

## Descriptions

(Last checked against version 1.17.2.)

### Program file descriptions

#### addftinfo

addftinfo reads a troff font file and adds some additional font-metric information that is used by the groff system.

#### afmtodit

afmtodit creates a font file for use with groff and grops.

#### eqn

eqn compiles descriptions of equations embedded within troff input files into commands that are understood by troff.

#### geqn

geqn is the GNU implementation of eqn.

#### grn

grn is a groff preprocessor for gremlin files.

#### grodvi

grodvi is a driver for groff that produces TeX dvi format.

#### groff

groff is a front-end to the groff document formatting system. Normally it runs the troff program and a post-processor appropriate for the selected device.

#### grog

grog reads files and guesses which of the groff options -e, -man, -me, -mm, -ms, -p, -s, and -t are required for printing files, and prints the groff command including those options on the standard output.

#### grolbp

grolbp is a groff driver for Canon CAPSL printers (LBP-4 and LBP-8 series laser printers).

#### grolj4

grolj4 is a driver for groff that produces output in PCL5 format suitable for an HP Laserjet 4 printer.

#### grops

grops translates the output of GNU troff to Postscript.

#### grotty

grotty translates the output of GNU troff into a form suitable for typewriter-like devices.

#### gtbl

gtbl is the GNU implementation of tbl.

#### hpftodit

hpftodit creates a font file for use with groff -Tlj4 from an HP tagged font metric file.

#### indxbib

indxbib makes an inverted index for the bibliographic databases a specified file for use with refer, lookbib, and lkbib.

#### lkbib

lkbib searches bibliographic databases for references that contain specified keys and prints any references found on the standard output.

#### lookbib

lookbib prints a prompt on the standard error (unless the standard input is not a terminal), reads from the standard input a line containing a set of keywords, searches the bibliographic databases in a specified file for references containing those keywords, prints any references found on the standard output and repeats this process until the end of input.

#### mmroff

mmroff is a simple preprocessor for groff.

#### neqn

The neqn script formats equations for ascii output.

#### nroff

The nroff script emulates the nroff command using groff.

#### pfbtops

pfbtops translates a Postscript font in .pfb format to ASCII.

#### pic

pic compiles descriptions of pictures embedded within troff or TeX input files into commands that are understood by TeX or troff.

#### pre-grohtml and post-grohtml

pre- and post-grohtml translate the output of GNU troff to html.

#### refer

refer copies the contents of a file to the standard output, except that lines between .[ and .] are interpreted as citations, and lines between .R1 and .R2 are interpreted as commands about how citations are to be processed.

#### soelim

soelim reads files and replaces lines of the form .so file by the contents of file.

#### tbl

tbl compiles descriptions of tables embedded within troff input files into commands that are understood by troff.

#### tfmtodit

tfmtodit creates a font file for use with `groff -Tdvi`.

#### troff

troff is highly compatible with Unix troff. Usually it should be invoked using the groff command, which will also run preprocessors and post-processors in the appropriate order and with the appropriate options.

#### zsoelim

zsoelim is the GNU implementation of soelim.

##

## Groff Installation Dependencies

(Last checked against version 1.17.2.)

Bash: sh
Binutils: ar, as, ld, ranlib
Bison: bison
Coreutils: basename, cat, chmod, cp, date, echo, expr, hostname, install,
ln, ls, mkdir, mv, rm, touch, tr, uname
Diffutils: cmp
Gawk: awk
GCC: cc1, cc1plus, collect2, cpp0, g++, gcc
Grep: egrep, grep
Make: make
Sed: sed

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