Power Shell Output filter - powershell

Question

I'm using the comand Get-AzresourceGroup. The ouput of that command is information about ResourID, Tags, Resource group name etc. of all resource groups in Azure. I want to store in a variable all the names of the resource groups, I do not need the other information. Is there a way I can do that?
Thank you!
Comand Output

Answer 1

From the Get-AzResourceGroup documentation, you can simply reference only the Resource Group Name :
$groups = (Get-AzResourceGroup).ResourceGroupName
Or using the CLI, and extracting from the JSON:
$group = az group list | ConvertFrom-Json
$group | Select-Object -Property Name

Answer 2

Try piping the output from Get-AzResourceGroup to Select-Object and use the -Property parameter to specify the property/properties to select.
$rgs = Get-AzResourceGroup | Select-Object -Property ResourceGroupName
Your will results should look something like this.
$rgs
ResourceGroupName
-----------------
ddo-06212021-1
ddo-06212021-2
ddo-06212021-3
cloud-shell-storage-eastus
If you're unsure what properties are available to select from the results of Get-AzResourceGroup, you can first pipe the output to Get-Member, and view the available properties.
Get-AzResourceGroup | Get-Member
TypeName: Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels.PSResourceGroup
Name MemberType Definition
---- ---------- ----------
Equals Method bool Equals(System.Object obj)
GetHashCode Method int GetHashCode()
GetType Method type GetType()
ToString Method string ToString()
Location Property string Location {get;set;}
ManagedBy Property string ManagedBy {get;set;}
ProvisioningState Property string ProvisioningState {get;set;}
ResourceGroupName Property string ResourceGroupName {get;set;}
ResourceId Property string ResourceId {get;set;}
Tags Property hashtable Tags {get;set;}
TagsTable Property string TagsTable {get;}
Links
Select-Object - learn.microsoft.com
Get-Member - learn.microsoft.com