asciidoc software package provides Highly configurable text format for writing documentation, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install asciidoc
asciidoc is installed in your system.
Make ensure the asciidoc package were installed using the commands given below,
$ sudo dpkg-query -l | grep asciidoc *
You will get with asciidoc package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Text Processing |
| Package | asciidoc |
| Version | 8.6.9-3 |
| Description | Highly configurable text format for writing documentation |
| Sub Section | Text |