pk4 command not found

Introduction

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

pk4: command not found

or when using sudo you get the following error message

sudo: pk4: command not found

Solutions to pk4: command not found

How To Fix pk4: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu pk4 is provided by pk4 package.

pk4 is:

pk4 resolves the specified argument(s) as either:

1. the name of a Debian binary package, and selects its Debian source package.
2. the name of a Debian source package, and selects it.
3. or a file path, and selects the Debian source package of the owning package.

The source package version is either the installed version (if any) or the installation candidate, as per “apt-cache policy”.

Then, pk4 downloads the entire selected source package (every file referenced by — and including — its .dsc file) and prints the output directory path.

pk4… • caps the disk usage of the checked out packages by deleting the oldest ones after crossing a limit (default: 2GiB). • allows users to enable supplied or shipped-with-pk4 hooks, e.g. git-init. • optimizes for low latency of each operation. • respects your APT configuration, i.e. should work in company intranets. • comes with tab completion for bash and zsh. • tries hard to download source packages, with fallback to snapshot.debian.org.

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

sudo apt-get -y install pk4

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

You can also use apt command to install pk4.

sudo apt -y install pk4

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

sudo aptitude install pk4

Summary

In this tutorial we learn how to fix pk4 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.