filter command not found

Introduction

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

filter: command not found

or when using sudo you get the following error message

sudo: filter: command not found

Solutions to filter: command not found

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

In Ubuntu filter is provided by filter package.

filter is:

filter is one of the original mail filtering programs written for UNIX. (originally a part of the ’elm’ mailer) Install it via a pipe(|) reference in $HOME/.forward, and let it separate your incoming email into different personal mailboxes.

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

sudo apt-get -y install filter

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

You can also use apt command to install filter.

sudo apt -y install filter

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

sudo aptitude install filter

Summary

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