groff
1.1、groff简介
是什么 ?:GNU troff, is a typesetting system that reads plain text mixed with formatting commands and produces formatted output. Output may be PostScript or PDF, html, or ASCII/UTF8 for display at the terminal. Formatting commands may be either low-level typesetting requests (“primitives”) or macros from a supplied set. Users may also write their own macros. All three may be combined.
开发语言:C
官方主页:https://www.gnu.org/software/groff
1.2、通过包管理器安装groff
操作系统包管理器安装命令
WindowsChocolateychoco install -y groff
macOSHomeBrewbrew install groff
GNU/LinuxLinuxBrewbrew install groff
aptsudo apt-get install -y groff
CentOSyumsudo yum install -y groff
dnfsudo dnf install -y groff
openSUSEzyppersudo zypper install -y groff
Alpine Linuxapksudo apk add groff

Arch Linux

ArcoLinux

Manjaro Linux

pacmansudo pacman -Syyu --noconfirm
sudo pacman -S    --noconfirm groff
1.3、通过包管理器安装groff 
1.4、groff命令