troff(1) General Commands Manual troff(1) (NAME) troff - GNU roff (SYNOPSIS) troff [-abcCEiRSUz] [-d ctext] [-d string=text] [-f font-family] [-F font-directory] [-I inclusion-directory] [-m macro-package] [-M macro-directory] [-n page-number] [-o page-list] [-r cnumeric-expression] [-r register=numeric-expression] [-T output-device] [-w warning-category] [-W warning-category] [file ...] troff --help troff -v troff --version (DESCRIPTION) GNU troff groff(7) groff_out(5) troff GNU roff . "-" troff . GNU troff AT&T troff . groff(1) . (OPTIONS) -h --help -v --version . -a . .A 1 . . o "". o . o . o . . ( .ss ) . o "" . -a . -b (backtrace) troff . troff . -c "color" . -C AT&T troff -c . groff_diff(7). -d ctext -d string=text roff c string text. c string . . getopt_long(3) c string roff . -E troff -Ww . tm ( ). -f fam fam . -F dir dir . GROFF_FONT_PATH "" . -i . -I dir dir ( psbb so soquiet "\X'ps: import'" "\X'ps: file'" "\X'pdf: pdfpic'"). -I dir . "-I ." . -I "include" . -m mac mac.tmac . tmac.mac . GROFF_TMAC_PATH "" . -M dir dir . GROFF_TMAC_PATH "" . -n num num. 1 . -o list list n n m-n m n -n n n- n . troff list . -r cnumeric-expression -r register=numeric-expression roff c register numeric-expression. c register . . getopt_long(3) c register roff . -R troffrc troffrc-end . -S -U. -T dev dev. ps groff(1). -U cf open opena pi pso sy troff . ( GNU troff (line feed) .) -m -M . -w cat -W cat cat. "" . -z . (WARNINGS) GNU troff . -w -W . warn .warn . . +----------------------+--------------------------+ |Bit Code Category | Bit Code Category | +----------------------+--------------------------+ | 0 1 char | 10 1024 reg | | 1 2 unused | 11 2048 tab | | 2 4 break | 12 4096 unused | | 3 8 delim | 13 8192 missing | | 4 16 unused | 14 16384 input | | 5 32 scale | 15 32768 escape | | 6 64 range | 16 65536 space | | 7 128 syntax | 17 131072 font | | 8 256 di | 18 262144 ig | | 9 512 mac | 19 524288 color | | | 20 1048576 file | +----------------------+--------------------------+ break 4 (filled) " \n[.l] " . . GNU troff (overset) (underset) warnscale troff en (` n ' ) nroff . . . char 1 . . . color 524288 . delim 8 . . . groff . . . di 256 di da box boxa (diversion) . escape 32768 . file 1048576 . . . font 131072 . . . ig 262144 ig . . . input 16384 . mac 512 (diversion) . . . . troff . . . troff (trap macro) . . . missing 8192 . range 64 . reg 1024 . . 0 . . GNU troff . scale 32 . space 65536 . . . . . . . . . syntax 128 (hyphenation) groff . tab 2048 (tab) . . all di mac reg. AT&T troff GNU troff. w . groff . (EXIT STATUS) troff 0 2 1 . (ENVIRONMENT) GROFF_FONT_PATH GROFF_TMAC_PATH . (:) - (;) . GROFF_FONT_PATH . troff -F (/usr/share/groff/site-font) (/usr/share/groff/1.24.1/font) (/usr/ lib/font) . GROFF_TMAC_PATH . troff -M ( ) (/usr/share/groff/site-tmac) (/usr/share/ groff/1.24.1/tmac) . GROFF_TYPESETTER . ps . -T GROFF_TYPESETTER . SOURCE_DATE_EPOCH ( ) . gmtime(3) asctime(3) . TZ tzset(3). SOURCE_DATE_EPOCH UTC . (FILES) /usr/share/groff/1.24.1/tmac/troffrc -m . /usr/share/groff/1.24.1/tmac/troffrc-end -m . /usr/share/groff/1.24.1/tmac/name.tmac groff . /usr/share/groff/1.24.1/font/devname/DESC name . /usr/share/groff/1.24.1/font/devname/F F name . troffrc troffrc-end -U . -M GROFF_TMAC_PATH . (AUTHORS) troff James Clark Werner Lemberg Bernd Warken G. Branden Robinson . (SEE ALSO) Groff: The GNU Implementation of troff Trent A. Fisher Werner Lemberg groff . "info groff" . groff(1) GNU roff . groff(7) groff . groff_char(7) groff . groff_diff(7) troff AT&T groff . groff_font(5) groff . groff_out(5) troff . groff_tmac(5) groff . roff(7) roff . groff 1.24.1 2026-03-15 troff(1)