Powershell: how do I get the current volume as a single letter [duplicate]

Question

I would like to have the current volume name as part of a filename, e.g. bsps-on-c.txt for files in volume C:, bsp-on-d.txt for files in volume d and so on.

code is:

$v=volume
$col=@{expression="driveletter";label=""}
$v | where {$_.drivetype -like "Fixed" -and  $_.driveletter -notlike "" } | format-table $col

output is:

-
C

question is: How to get rid off empty lines and line with -

Expectation was:

only letter C and nothing more, no white spaces, no empty lines

Answer 1

If you just want to output the drive letter on its own:

Get-Volume |Where-Object {$_.DriveType -like "Fixed" -and  $_.DriveLetter -notlike "" } |ForEach-Object DriveLetter

ForEach-Object DriveLetter will attempt to resolve the DriveLetter property on each input object and return its raw value.