Powershell benennen die Wildcard um
get-childitem -Path "$dir" | where-object { $_.Name -like "$file" } | %{rename-item -path $dir$_ -newname $d"_"$_}
Thoughtful Toad
get-childitem -Path "$dir" | where-object { $_.Name -like "$file" } | %{rename-item -path $dir$_ -newname $d"_"$_}