NROFF(1) General Commands Manual NROFF(1) NAME nroff - use groff to format documents for TTY devices SYNOPSIS nroff [-CchipStUv] [-dcs] [-Mdir] [-mname] [-nnum] [-olist] [-rcn] [-Tname] [-Wwarning] [-wwarning] [file ...] nroff --help nroff -v nroff --version DESCRIPTION nroff formats documents written in the roff(7) language for typewriter-like devices such as terminal emulators. GNU nroff emulates the traditional Unix nroff command using groff(1). nroff generates output via grotty(1), groff's TTY output device, which needs to know the character encod- ing scheme used by the terminal. Consequently, acceptable arguments to the -T option are ascii, latin1, utf8, and cp1047; any others are ignored. If neither the GROFF_TYPESETTER environment variable nor the -T command-line option (which overrides the environment vari- able) specifies a (valid) device, nroff consults the locale to select an appropriate out- put device. It first tries the locale(1) program, then checks several locale-related en- vironment variables; see "ENVIRONMENT", below. If all of the foregoing fail, -Tascii is implied. Whitespace is not permitted between an option and its argument. The -h and -c options are equivalent to grotty's options -h (using tabs in the output) and -c (using the old output scheme instead of SGR escape sequences). The -d, -C, -i, -M, -m, -n, -o, -r, -w, and -W options have the effect described in troff(1). In addition, nroff ignores -e, -q, and -s (which are not implemented in troff). The options -p (pic), -t (tbl), -S (safer), and -U (unsafe) are passed to groff. -v and --version show version information, while --help displays a usage message; all exit afterward. ENVIRONMENT GROFF_TYPESETTER specifies the default output device for groff. GROFF_BIN_PATH is a colon-separated list of directories in which to search for the groff exe- cutable before searching in PATH. If unset, /usr/bin is used. LC_ALL LC_CTYPE LANG LESSCHARSET are pattern-matched in this order for standard character encodings supported by groff in the event no -T option is given and GROFF_TYPESETTER is unset. NOTES Character definitions in the file /usr/share/groff/1.22.4/tmac/tty-char.tmac are loaded to replace unrepresentable glyphs. SEE ALSO groff(1), troff(1), grotty(1), locale(1), roff(7) groff 1.22.4 23 March 2022 NROFF(1)
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