Windows PowerShell - Calculating and Formatting Values of Properties

This example will show you how to calculate the free and used disk space percentages and remove decimal places from the output.

I’m going to start by getting some basic WMI information, command:

image

The Win32_Logical Disk class contains information about volumes and partitions – Exactly what I need.

Output:image

I want to see all the available properties, so I am going to use Format-List * (Alias: fl). Command:

image

Output (sample):

image

I want to select the following information: Hostname, drive letter, label, free space, used space. Command:

image

Explanation:

  • The back ticks ` at the end of each line allow me to continue the command on the next line down.
  • The @{} syntax is an expression to create a calculated member and/or rename the member.

Output:

image

 

That’s not bad, but I really only want whole numbers, no decimal places. I will use .NET formatting to achieve this. Command:

image

Explanation:

  • The "{0:N0}" –f syntax specifies to set the format to Numeric with 0 decimal places. The first 0 is the index and can be left at zero. Set the second zero to a different number to change the number of decimal places.

Output:

image

All done Open-mouthed smile

Popular posts from this blog

Get local computer UUID/GUID using Windows Powershell

Use the following syntax to get the local computer's UUID/GUID using Windows Powershell: get-wmiobject Win32_ComputerSystemProduct  | Select-Object -ExpandProperty UUID Add -computername after the WMI class to find a remote computer's UUID, example: get-wmiobject Win32_ComputerSystemProduct -computername RANTPC | Select-Object -ExpandProperty UUID
Read more

gPLink and gPOptions

gPLink is a property for sites, domains and organisational units that contains a prioritised list of GPOs linked to the node. gPOptions is a property that contains all Block Policy Inheritance settings for the node. To manage GPO links on a node, you must have read and write access to the gPLink and gPOptions properties.
Read more

PSLoggedOn Getting Started on Windows Server 2008 R2

Image
PSLoggedOn is a tool I downloaded to allow me to find out which computers a user is currently logged on to. Getting it up and running wasn’t exactly easy. I’m running a Windows Server 2008 R2 test environment. The first error I encountered was: Error browing network: The list of servers for this workgroup is not currently available. Note: I kept the spelling mistake from the error message to make it easier to find via search engines. To get past this error, you have to enable and start the “Computer Browser” service. Then I started getting the error telling me that the Administrator is not logged on. That’s simply not true because I am logged onto another server (Name: ELARA): I turned the firewall OFF OFF OFF (It is a test network after all). I enabled Network Discovery and to do that I went on a service starting frenzy: DNS Client, Function Discovery Resource Publication, SSDP Discovery, and UPnP Device Host, Computer Browser After all that, I ran the script against the se
Read more