Create Azure Resource group and prevent any duplicate object creation

#Author : Neeraj

clear
$RsGrp_name=read-host "Enter resource group name:"
write-host "select location like" -BackgroundColor yellow -ForegroundColor blue
write-host "==============" -BackgroundColor yellow -ForegroundColor red
write-host "East US" -BackgroundColor yellow -ForegroundColor black
write-host "Central US" -BackgroundColor yellow -ForegroundColor black
write-host "Central India" -BackgroundColor yellow -ForegroundColor black
write-host "etc..." -BackgroundColor yellow -ForegroundColor black
write-host "==============" -BackgroundColor yellow -ForegroundColor red
write-host ""
$RsGrp_location =read-host "Enter resource group location:"
$rsn=Get-AzureRmResourceGroup |select ResourceGroupName
$flag=0

foreach($rsname in $rsn)
{
   if($RsGrp_name -eq $rsname.ResourceGroupName)
       {
        $flag=1
        break
        }
       else
       {
       $flag=0
       }
}
       if($flag -eq 1)
       {
           write-host "This Resource group already exist, please select another name" -BackgroundColor red -ForegroundColor yellow
         
       }
       else
       {
       write-host "Creating ResourceGroup..." $RsGrp_name -BackgroundColor green -ForegroundColor white
       echo "Please wait..."
       New-AzureRmResourceGroup -name $RsGrp_name -location $RsGrp_location -Confirm:$false
     
       sleep 10
     
       echo "Generating output"
       Get-AzureRmResourceGroup -Name $RsGrp_name
       }