Скачать или смотреть How to Uninstall ns-3 from Ubuntu When the Package Can't Be Located

Learn how to effectively uninstall the `ns-3` simulator on Ubuntu when traditional package managers fail to locate it. This guide offers a simple step-by-step solution to remove the program.
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This video is based on the question https://stackoverflow.com/q/73427392/ asked by the user 'Mad_Alice' ( https://stackoverflow.com/u/19808239/ ) and on the answer https://stackoverflow.com/a/73462267/ provided by the user 'Sagar' ( https://stackoverflow.com/u/13040392/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Uninstall ns-3 from Ubuntu When the Package Can't Be Located

Are you facing difficulties uninstalling ns-3, the widely used network simulator, from your Ubuntu system? If you’ve installed it via a tarball and are experiencing errors when trying to remove it using the traditional package management commands, you’re not alone. This guide will guide you through the process of properly uninstalling ns-3 when the package manager fails to locate the software. Let's dive in!

Understanding the Installation Method

First, it's important to understand how ns-3 was installed on your system. When you downloaded ns-3.36 via tarball, you didn't actually install it using the package manager (apt or dpkg). Instead, you simply unpacked a compressed file (often referred to as a tarball). This method means that the package manager has no record of ns-3, which is why you're encountering errors when trying to uninstall it using commands like:

[[See Video to Reveal this Text or Code Snippet]]

and

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The Uninstall Solution

Since ns-3 was unpacked from a tarball, you can uninstall it by deleting its directory directly. Here’s how to do that step-by-step.

Step-by-Step Uninstallation Process

Open Your Terminal: You can search for "Terminal" in your applications menu or use the shortcut Ctrl + Alt + T.

Navigate to the Directory: If necessary, change to the parent directory that contains the ns-allinone-3.36 directory. Utilize the cd command if needed. For example:

[[See Video to Reveal this Text or Code Snippet]]

Replace ~/path/to/your/directory with the actual path where you unpacked ns-3.

Remove the Directory: Execute the following command to delete the entire ns-allinone-3.36 directory:

[[See Video to Reveal this Text or Code Snippet]]

This command recursively removes the ns-allinone-3.36 directory and all of its contents.

Important Note

Be careful with the rm -r command; it will permanently delete files and directories without putting them into trash. Ensure that you’re in the correct directory and that you want to delete this folder permanently.

Conclusion

Uninstalling ns-3 from Ubuntu when it can't be found by the package manager is straightforward once you know the right steps. Because you installed it from a tarball, all that’s needed is to remove the directory containing the files.

By following the steps outlined above, you can successfully clear up your system of ns-3 and prepare for a fresh installation or simply free up space. If you have any further questions or need help with your installation process, feel free to reach out in the comments below!