119 lines
4.2 KiB
Groff
119 lines
4.2 KiB
Groff
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Command: roff - text formatter
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Syntax: roff [-hs] [+n] [-n] file ...
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Flags: -h Expand tabs to spaces in output
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-s Stop before each page; continue on DEL
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+n Start printing with page n
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-n Stop after page n
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Examples: roff file # Run off file
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roff +5 file # Run off file starting at page 5
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Roff is a text formatter. Its input consists of the text to be
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output, intermixed with formatting commands. A formatting command is a
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line containing the control character followed by a two character
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command name, and possibly one or more arguments. The control character
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is initially '.' (dot). The formatted output is produced on standard
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output.
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The formatting commands are listed below, with n being a number, c
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being a character, and t being a title. A + before n means it may be
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signed, indicating a positive or negative change from the current value.
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Initial values for n, where relevant, are given in parentheses.
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.ad Adjust right margin.
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.ar Arabic page numbers.
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.br Line break. Subsequent text will begin on a new line.
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.bl n Insert n blank lines.
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.bp +n Begin new page and number it n. No n means +1.
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.cc c Control character is set to c.
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.ce n Center the next n input lines.
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.de zz Define a macro called zz. A line with '..' ends definition.
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.ds Double space the output. Same as .ls 2.
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.ef t Even page footer title is set to t.
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.eh t Even page header title is set to t.
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.fi Begin filling output lines as full as possible.
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.fo t Footer titles (even and odd) are set to t.
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.hc c The character c (e.g., %) tells roff where hyphens are
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permitted.
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.he t Header titles (even and odd) are set to t.
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.hx Header titles are suppressed.
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.hy n Hyphenation is done if n is 1, suppressed if it is 0.
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Default is 1.
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.ig Ignore input lines until a line beginning with '..' is
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found.
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.in n Indent n spaces from the left margin; force line break.
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.ix n Same as .in but continue filling output on current line.
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.li n Literal text on next n lines. Copy to output unmodified.
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.ll +n Line length (including indent) is set to n (65).
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.ls +n Line spacing: n (1) is 1 for single spacing, 2 for double,
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etc.
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.m1 n Insert n (2) blank lines between top of page and header.
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.m2 n Insert n (2) blank lines between header and start of text.
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.m3 n Insert n (1) blank lines between end of text and footer.
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.m4 n Insert n (3) blank lines between footer and end of page.
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.na No adjustment of the right margin.
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.ne n Need n lines. If fewer are left, go to next page.
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.nn +n The next n output lines are not numbered.
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.n1 Number output lines in left margin starting at 1.
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.n2 n Number output lines starting at n. If 0, stop numbering.
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.ni +n Indent line numbers by n (0) spaces.
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.nf No more filling of lines.
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.nx f Switch input to file f.
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.of t Odd page footer title is set to t.
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.oh t Odd page header title is set to t.
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.pa +n Page adjust by n (1). Same as .bp
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.pl +n Paper length is n (66) lines.
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.po +n Page offset. Each line is started with n (0) spaces.
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.ro Page numbers are printed in Roman numerals.
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.sk n Skip n pages (i.e., make them blank), starting with next
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one.
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.sp n Insert n blank lines, except at top of page.
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.ss Single spacing. Equivalent to .ls 1.
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.ta Set tab stops, e.g., .ta 9 17 25 33 41 49 57 65 73
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(default).
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.tc c Tabs are expanded into c. Default is space.
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.ti n Indent next line n spaces; then go back to previous indent.
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.tr ab Translate a into b on output.
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.ul n Underline the letters and numbers in the next n lines.
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