SharePoint 2010 PowerShell: Get all active databases and their ID for a SharePoint farm

Use the following PowerShell command to get all active databases and their associated ID for a SharePoint farm.

Get-SPDatabase | Sort-Object name | Format-Table Name, Id -Auto

Append the out-file cmdlet to send the output to a text file.

Get-SPDatabase | Sort-Object name | Format-Table Name, Id -Auto | out-file c:\spdb.txt