colmux command not found

Introduction

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

colmux: command not found

or when using sudo you get the following error message

sudo: colmux: command not found

Solutions to colmux: command not found

How To Fix colmux: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu colmux is provided by collectl package.

collectl is:

Collectl is a performance monitoring and benchmark tool that tries to do it all. You can choose to monitor any of a broad set of subsystems which currently include buddyinfo, cpu, disk, inodes, infiniband, lustre, memory, network, nfs, processes, quadrics, slabs, sockets and tcp.

Output can also be saved in a rolling set of logs for later playback or displayed interactively in a variety of formats. If all that isn’t enough there are additional mechanisms for supplying data to external tools by generating output as s-expressions, a format of choice for some tools such as supermon or in another format called list-expressions. This output can be written to a file or sent over a socket. You can even create files in space-separated format for plotting with external packages like gnuplot.

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

sudo apt-get -y install collectl

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

You can also use apt command to install collectl.

sudo apt -y install collectl

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

sudo aptitude install collectl

Summary

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