Follow the steps below to install PowerShell on Ubuntu:

1. Go to https://github.com/powershell/powershell.
2. Scroll down to the table that contains the list of Linux distributions officially supported by the PowerShell team.
3. Click on the relevant link: .deb under Downloads (stable)—we will stick to the stable release.
4. Read the installation instructions if you need additional information.
5. Run the .deb file with gdebi or eddy or one such package installer to complete the installation.

If you aren't running one of the distributions supported officially by the Team or by the community, use the AppImage. Follow steps 1 and 2 from above, and:

1. Click on Many Linux distributions | AppImage to download the Ap-pImage file. An AppImage file is a an application, packaged with all the dependencies required to run the application.
2. Save the AppImage file at a convenient location.
3. Once the download completes, navigate to the download location and run the AppImage.
4. If you get a prompt asking if you would like PowerShell installed, choose the response appropriate to your environment.