use Invoke-AzVMRunCommand -Params - azure

Question

I am trying to use the command like so:
a = 345
name = "myVM"
Invoke-AzVMRunCommand -ResourceGroupName $RGName -Name $VMName -CommandId 'RunPowerShellScript' -ScriptPath $FileName -Parameter #{"b" = "a"; "test" = "name"}
the script in the file isn't really important I am just trying to use params inside of it with values of params from the outside. If I put "b" = 345 it works but with the outside param (a), it doesn't so I wanted to know how to do it.
it does execute the script but ignores the commands using these params.
for reference the script is something like this:
New-Item -Path "." -Name "index.html" -ItemType "file" -Value $b
New-Item -Path "." -Name $test -ItemType "file" -Value "3333333"

Answer 1

We use Invoke-AzVMRunCommand to Invoke a run command on the VM. And the -Parameter is used to run the command parameter.
The the type for -Parameter is Hashtable, which maps keys to values. Any non-null object can be used as a key or as a value.
Invoke command is more like a batch script, so when we want to pass a pre-defined variable we have to use the $ symbol without any double quotes (""). So you can solve your problem by following the code snippet below.
#Example
a = 345
name = "myVM"
Invoke-AzVMRunCommand -ResourceGroupName $RGName -Name $VMName -CommandId 'RunPowerShellScript' -ScriptPath $FileName -Parameter #{"b" = $a; "test" = $name}
Read this Invoke-AzVMRunCommand document and about_Hash_Tables document for more information.

Answer 2

Invoke-AzVMRunCommand -ResourceGroupName $RGName -Name $VMName -CommandId 'RunPowerShellScript' -ScriptPath $FileName -Parameter #{"b" = $a; "test" = $name}
It don't work. The same problem.
I have the script which create VM in azure:
$password = ConvertTo-SecureString -String "Qwerty123456" -AsPlainText
$cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $user, $password
$x = Get-Random 10000 -Minimum 10
$location = "East US"
$rgname = "testVM"+$x
$VMName = "vm1"
# Create Resource group
New-AzResourceGroup -name $rgname -Location $location
# Create VM, vnet, publicIP, port 3389
New-AzVM -ResourceGroupName $rgname `
-Location $location `
-Name "verdyshtest" `
-VirtualNetworkName "virtnet" `
-SubnetName 'verdyshnetwork' `
-PublicIpAddressName "verdyshpublicIP" `
-Image Win2019Datacenter `
-OpenPorts 3389 `
-Credential $cred
# Script only running after deploy
Invoke-AzVMRunCommand -ResourceGroupName $rgname -VMName $VMName -CommandId RunPowerShellScript -ScriptPath '.\2 Install app on VM.ps1'
In last count it can't to execute 'invoke-azvmruncommand', because of variable in parameters.
But in New-AzVM cmdlet variables works well.
Had a error:
error