HashTables.ps1

HashTables.ps1

# Example No Hash table or Calculated Properties
Get-WmiObject -Class WIN32_volume -ComputerName localhost -Filter 'drivetype = 3' | 
    Select-Object -Property PScomputerName, 
                            DriveLetter, 
                            Label, 
                            FreeSpace

# Example using a Hash table
Get-WmiObject -Class WIN32_volume -ComputerName localhost -Filter 'drivetype = 3' | 
    Select-Object -Property PScomputerName, 
                            DriveLetter, 
                            Label, 
                            @{
                                LABEL='FreeSpace(GB)';
                                EXPRESSION={($_.freespace/1GB)}
                             }
# Better but not exactly what we're looking for.

Get-WmiObject -Class WIN32_volume -ComputerName localhost -Filter 'drivetype = 3' | 
    Select-Object -Property PScomputerName, 
                            DriveLetter, 
                            Label, 
                            @{
                                LABEL='FreeSpace(GB)';
                                EXPRESSION={'{0:N2}' -f ($_.freespace/1GB)}
                             }