GNU troff *********
· Introduction · Invoking groff · Tutorial for Macro Users · Macro Packages · gtroff Reference · Preprocessors · Output Devices · File formats · Installation · Copying This Manual · Request Index · Escape Index · Operator Index · Register Index · Macro Index · String Index · Glyph Name Index · Font File Keyword Index · Program and File Index · Concept Index This manual documents GNU 'troff' version 1.22.4. Copyright © 1994-2018 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover texts being "A GNU Manual," and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled "GNU Free Documentation License." (a) The FSF's Back-Cover Text is: "You have the freedom to copy and modify this GNU manual. Buying copies from the FSF supports it in developing GNU and promoting software freedom."