Ubuntu Howto Check If Package Already Installed

July 23, 2012 | By Regaz.

This Short Tip Show How to Check If a Package is Already Installed in Ubuntu Linux.

To the Article Bottom Link to Post Showing Exactly Howto Search for Files/Directories/Paths/Images by Command Line.

The Contents and Details are Expressly Essentials to Give Focus Only to the Essentials Instructions and Commands and Make Tip Easier to Read & Understand ;)

How to Enable System Tray on Fedora 34 Gnome 3

  1. Open a Terminal Window
    (Press “Enter” to Execute Commands)

  2. dpkg -l [packagename]

    For Example here Below the Output of a Check for python-django.

    Ubuntu Check If Package Installed

To Get some Extra-Insight Look this other Guide:
HOW to Find Files/Directories/Images on Linux Command Line

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