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Here is a break down of this command: sudo Execute the command that follows using super user permissions. The following screenshot demonstrates what you will see. To do this enter the command sudo apt-get update after the system prompt. To update the software on our system we must first ensure we have the latest package lists. In this tutorial, we have logged in as techonthenet on the host called ubuntu. If you are unsure of how to do this, read our tutorial on Logging into Ubuntu Linux Server 14.04 LTS. To begin updating your Ubuntu Linux System, you will need to be logged in using a valid user account for your system.
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The update process can take some time to complete and some steps may take longer than others. The following steps will guide you through updating an Ubuntu Linux Server 14.04 LTS system. The system must have network connectivity and access to an Ubuntu update server. To complete this tutorial you will require a running Ubuntu Linux Server 14.04 LTS (Trusty Tahr) system and an account with sudo administrative privileges. In this Linux system administration tutorial you will learn how to update an Ubuntu Linux Server 14.04 LTS system with screenshots and instructions. Linux: How to Update Ubuntu Linux Server 14.04 LTS
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