Copy the specified folder to another location

• command: spo folder copy -u|--webUrl <webUrl> -s|--sourceUrl <sourceUrl> -t|--targetUrl <targetUrl> --deleteIfAlreadyExists
• webUrl: The URL of the site where the folder is located
• sourceUrl: site-relative URL of the folder to copy
• targetUrl: server-relative URL where to copy the folder
• deleteIfAlreadyExists: If provided, if a file already exists at the targetUrl, it will be overwritten. If ommitted, the copy operation will be canceled if the file already exists at the targetUrl location.
• requires connection to a SharePoint site

For more information see the Copy-PnPFile cmdlet