ckbuilder software package provides command line builder for CKEditor, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ckbuilder
ckbuilder is installed in your system.
Make ensure the ckbuilder package were installed using the commands given below,
$ sudo dpkg-query -l | grep ckbuilder *
You will get with ckbuilder package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Development |
| Package | ckbuilder |
| Version | 2.3.0+dfsg-2 |
| Description | command line builder for CKEditor |
| Sub Section | Devel |