mlock command not found

Introduction

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

mlock: command not found

or when using sudo you get the following error message

sudo: mlock: command not found

Solutions to mlock: command not found

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

In Ubuntu mlock is provided by mlock package.

mlock is:

IMAP (Internet Message Access Protocol) is a method of accessing electronic messages kept on a (possibly shared) mail server.

The UW (University of Washington) IMAP toolkit provides the c-client mail-handling library supporting various network transport methods, file system storage formats, and authentication and authorization methods.

This package contains a program to lock mailbox files to avoid corruption.

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

sudo apt-get -y install mlock

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

You can also use apt command to install mlock.

sudo apt -y install mlock

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

sudo aptitude install mlock

Summary

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