.TH \%nroff 1 "28 August 2024" "groff 1.23.0" .SH Name \%nroff \- format documents with .I groff for TTY (terminal) devices . . .\" ==================================================================== .\" Legal Terms .\" ==================================================================== .\" .\" Copyright (C) 1989-2021 Free Software Foundation, Inc. .\" .\" Permission is granted to make and distribute verbatim copies of this .\" manual provided the copyright notice and this permission notice are .\" preserved on all copies. .\" .\" Permission is granted to copy and distribute modified versions of .\" this manual under the conditions for verbatim copying, provided that .\" the entire resulting derived work is distributed under the terms of .\" a permission notice identical to this one. .\" .\" Permission is granted to copy and distribute translations of this .\" manual into another language, under the above conditions for .\" modified versions, except that this permission notice may be .\" included in translations approved by the Free Software Foundation .\" instead of in the original English. . . .\" Save and disable compatibility mode (for, e.g., Solaris 10/11). .do nr *groff_nroff_1_man_C \n[.cp] .cp 0 . .\" Define fallback for groff 1.23's MR macro if the system lacks it. .nr do-fallback 0 .if !\n(.f .nr do-fallback 1 \" mandoc .if \n(.g .if !d MR .nr do-fallback 1 \" older groff .if !\n(.g .nr do-fallback 1 \" non-groff *roff .if \n[do-fallback] \{\ . de MR . ie \\n(.$=1 \ . I \%\\$1 . el \ . IR \%\\$1 (\\$2)\\$3 . . .\} .rr do-fallback . . .\" ==================================================================== .SH Synopsis .\" ==================================================================== . .SY \%nroff .RB [ \-bcCEhikpRStUVz ] .RB [ \-d\~\c .IR ctext ] .RB [ \-d\~\c .IB string =\c .IR text ] .RB [ \-K\~\c .IR fallback-encoding ] .RB [ \-m\~\c .IR macro-package ] .RB [ \-M\~\c .IR macro-directory ] .RB [ \-n\~\c .IR page-number ] .RB [ \-o\~\c .IR page-list ] .RB [ \-P\~\c .IR postprocessor-argument ] .RB [ \-r\~\c .IR cnumeric-expression ] .RB [ \-r\~\c .IB register =\c .IR numeric-expression ] .RB [ \-T\~\c .IR output-device ] .RB [ \-w\~\c .IR warning-category ] .RB [ \-W\~\c .IR warning-category ] .RI [ file\~ .\|.\|.] .YS . . .SY \%nroff .B \-\-help .YS . . .SY \%nroff .B \-v . .SY \%nroff .B \-\-version .YS . . .\" ==================================================================== .SH Description .\" ==================================================================== . .I \%nroff formats documents written in the .MR groff 7 language for typewriter-like devices such as terminal emulators. . GNU .I nroff \" GNU emulates the AT&T .I nroff \" AT&T command using .MR groff 1 . . .I \%nroff generates output via .MR grotty 1 , .IR groff 's terminal output driver, which needs to know the character encoding scheme used by the device. . Consequently, acceptable arguments to the .B \-T option are .BR ascii , .BR latin1 , .BR utf8 , and .BR cp1047 ; any others are ignored. . If neither the .I \%GROFF_TYPESETTER environment variable nor the .B \-T command-line option (which overrides the environment variable) specifies a (valid) device, .I \%nroff consults the locale to select an appropriate output device. . It first tries the .MR locale 1 program, then checks several locale-related environment variables; see section \[lq]Environment\[rq] below. . If all of the foregoing fail, .B \-Tascii is implied. . . .P The .BR \-b , .BR \-c , .BR \-C , .BR \-d , .BR \-E , .BR \-i , .BR \-m , .BR \-M , .BR \-n , .BR \-o , .BR \-r , .BR \-U , .BR \-w , .BR \-W , and .B \-z options have the effects described in .MR \%troff 1 . . .B \-c and .B \-h imply .RB \[lq] \-P\-c \[rq] and .RB \[lq] \-P\-h \[rq], respectively; .B \-c is also interpreted directly by .IR \%troff . . In addition, this implementation ignores the AT&T .I nroff \" AT&T options .BR \-e , .BR \-q , and .B \-s (which are not implemented in .IR groff ). . The options .BR \-k , .BR \-K , .BR \-p , .BR \-P , .BR \-R , .BR \-t , and .B \-S are documented in .MR groff 1 . . .B \-V causes .I \%nroff to display the constructed .I groff command on the standard output stream, but does not execute it. . .B \-v and .B \-\-version show version information about .I \%nroff and the programs it runs, while .B \-\-help displays a usage message; all exit afterward. . . .\" ==================================================================== .SH "Exit status" .\" ==================================================================== . .I \%nroff exits with error .RB status\~ 2 if there was a problem parsing its arguments, with .RB status\~ 0 if any of the options .BR \-V , .BR \-v , .BR \-\-version , or .B \-\-help were specified, and with the status of .I groff otherwise. . . .\" ==================================================================== .SH Environment .\" ==================================================================== . Normally, the path separator in environment variables ending with .I PATH is the colon; this may vary depending on the operating system. . For example, Windows uses a semicolon instead. . . .TP .I GROFF_BIN_PATH is a colon-separated list of directories in which to search for the .I groff executable before searching in .IR PATH . . If unset, .I /usr/\:\%bin is used. . . .TP .I GROFF_TYPESETTER specifies the default output device for .IR groff . . . .TP .I LC_ALL .TQ .I LC_CTYPE .TQ .I LANG .TQ .I LESSCHARSET are pattern-matched in this order for contents matching standard character encodings supported by .I groff in the event no .B \-T option is given and .I \%GROFF_TYPESETTER is unset, or the values specified are invalid. . . .\" ==================================================================== .SH Files .\" ==================================================================== . .TP .I /usr/\:\%share/\:\%groff/\:\%1.23.0/\:\%tmac/\:\%tty\-char\:.tmac defines fallback definitions of .I roff special characters. . These definitions more poorly optically approximate typeset output than those of .I tty.tmac in favor of communicating semantic information. . .I nroff loads it automatically. . . .\" ==================================================================== .SH Notes .\" ==================================================================== . Pager programs like .MR more 1 and .MR less 1 may require command-line options to correctly handle some output sequences; see .MR grotty 1 . . . .\" ==================================================================== .SH "See also" .\" ==================================================================== . .MR groff 1 , .MR \%troff 1 , .MR grotty 1 , .MR locale 1 , .MR roff 7 . . .\" Restore compatibility mode (for, e.g., Solaris 10/11). .cp \n[*groff_nroff_1_man_C] .do rr *groff_nroff_1_man_C . . .\" Local Variables: .\" fill-column: 72 .\" mode: nroff .\" End: .\" vim: set filetype=groff textwidth=72: