gen-ctl-io command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

gen-ctl-io: command not found

or when using sudo you get the following error message

sudo: gen-ctl-io: command not found

Solutions to gen-ctl-io: command not found

How To Fix gen-ctl-io: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu gen-ctl-io is provided by libctl-dev package.

libctl-dev is:

libctl is a free Guile-based library implementing flexible control files for scientific simulations. It was written to support the MIT Photonic-Bands program, but will hopefully prove useful in other programs too.

This package contains the header files and static libraries.

To fix this problem, we can install more using the command below.

sudo apt-get -y install libctl-dev

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install libctl-dev.

sudo apt -y install libctl-dev

Or if you have aptitude installed you can use the following command.

sudo aptitude install libctl-dev

Summary

In this tutorial we learn how to fix gen-ctl-io command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.