Check If Azure Resource Group Exist - Azure Powershell - powershell

Question

I'm trying to verify if ResourceGroup exist or not so i thought that following code should return true or false, but it doesn't output anything.
$RSGtest = Find-AzureRmResource | Format-List ResourceGroupName | get-unique
$RSGtest -Match "$myResourceGroupName"
Why am I not getting any output?

Answer 1

Update:
You should use the Get-AzResourceGroup cmdlet from the new cross-plattform AZ PowerShell Module now. :
Get-AzResourceGroup -Name $myResourceGroupName -ErrorVariable notPresent -ErrorAction SilentlyContinue
if ($notPresent)
{
# ResourceGroup doesn't exist
}
else
{
# ResourceGroup exist
}
Original Answer:
There is a Get-AzureRmResourceGroup cmdlet:
Get-AzureRmResourceGroup -Name $myResourceGroupName -ErrorVariable notPresent -ErrorAction SilentlyContinue
if ($notPresent)
{
# ResourceGroup doesn't exist
}
else
{
# ResourceGroup exist
}

Answer 2

try this
$ResourceGroupName = Read-Host "Resource group name"
Find-AzureRmResourceGroup | where {$_.name -EQ $ResourceGroupName}

Answer 3

I am a PS newbie and I was looking for a solution to this question.
Instead of searching directly on SO I tried to investigate on my own using PS help (to get more experience on PS) and I came up with a working solution.
Then I searched SO to see how I compared to experts answers.
I guess my solution is less elegant but more compact. I report it here so others can give their opinions:
if (!(Get-AzResourceGroup $rgname -ErrorAction SilentlyContinue))
{ "not found"}
else
{"found"}
Explanation of my logic: I analyzed the Get-AzResourceGroup output and saw it's either an array with found Resource groups elements or null if no group is found. I chose the not (!) form which is a bit longer but allows to skip the else condition. Most frequently we just need to create the resource group if it doesn't exist and do nothing if it exists already.

Answer 4

I was also looking for the same thing but there was a additional condition in my scenario.
So I figured it out like this. To get the scenario details follow
$rg="myrg"
$Subscriptions = Get-AzSubscription
$Rglist=#()
foreach ($Subscription in $Subscriptions){
$Rglist +=(Get-AzResourceGroup).ResourceGroupName
}
$rgfinal=$rg
$i=1
while($rgfinal -in $Rglist){
$rgfinal=$rg +"0" + $i++
}
Write-Output $rgfinal
Set-AzContext -Subscription "Subscription Name"
$createrg= New-AzResourceGroup -Name $rgfinal -Location "location"

Answer 5

Had a similar challenge, I solved it using the script below:
$blobs = Get-AzureStorageBlob -Container "dummycontainer" -Context $blobContext -ErrorAction SilentlyContinue
## Loop through all the blobs
foreach ($blob in $blobs) {
write-host -Foregroundcolor Yellow $blob.Name
if ($blob.Name -ne "dummyblobname" ) {
Write-Host "Blob Not Found"
}
else {
Write-Host "bLOB already exist"
}
}