apt-cacher-ng command not found

Introduction

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

apt-cacher-ng: command not found

or when using sudo you get the following error message

sudo: apt-cacher-ng: command not found

Solutions to apt-cacher-ng: command not found

How To Fix apt-cacher-ng: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu apt-cacher-ng is provided by apt-cacher-ng package.

apt-cacher-ng is:

Apt-Cacher NG is a caching proxy for downloading packages from Debian-style software repositories (or possibly from other types).

The main principle is that a central machine hosts the proxy for a local network, and clients configure their APT setup to download through it. Apt-Cacher NG keeps a copy of all useful data that passes through it, and when a similar request is made, the cached copy of the data is delivered without being re-downloaded.

Apt-Cacher NG has been designed from scratch as a replacement for apt-cacher, but with a focus on maximizing throughput with low system resource requirements. It can also be used as replacement for apt-proxy and approx with no need to modify clients’ sources.list files.

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

sudo apt-get -y install apt-cacher-ng

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

You can also use apt command to install apt-cacher-ng.

sudo apt -y install apt-cacher-ng

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

sudo aptitude install apt-cacher-ng

Summary

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