@27617268 - Thanks for the question and using MS Q&A platform.
It seems that the 'Az.DataShare' module is not installed on your machine. You can install it by running the following command in PowerShell: https://www.powershellgallery.com/packages/Az.DataShare/1.0.2
Install-Module -Name Az.DataShare
Then you should be able to use the 'Get-AzDataShare' cmdlet to get details of your existing shares.
Get-AzDataShare -ResourceGroupName "ADS" -AccountName "WikiAdsAccount" -Name "AdsShare"
Hope this helps. Do let us know if you any further queries.
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