A script to present Azure NSG's into a csv file

Get-AzureNSGs.ps1

Connect-AzureRmAccount
$Subscription = "<Subscription-GUID>"
$LogFile = "C:\<PATH>\NSGs.csv"
If (Test-Path $Logfile) {
    Clear-Content -Path $Logfile
}
Add-Content $LogFile "nsg,rule,protocol,SourcePortRange,DestinationPortRange,SourceAddressPrefix,DestinationAddressPrefix,SourceApplicationSecurityGroups,DestinationApplicationSecurityGroups,Access,Priority,Direction"
Set-AzureRmContext -Subscription $Subscription
$NSGs = Get-AzureRmNetworkSecurityGroup
foreach ($nsg in $NSGs) {
    foreach ($rule in $nsg.SecurityRules) {
        select-object nsg, rule, protocol, SourcePortRange, DestinationPortRange, SourceApplicationSecurityGroups, DestinationApplicationSecurityGroups, SourceAddressPrefix, DestinationAddressPrefix, Access, Priority, Direction 
        $NSGName = $nsg.Name
        Write-Host "NSGName" $NSGName
        $NSGRuleName = $rule.name
        Write-Host "NSGRuleName" $NSGRuleName
        $NSGRuleProtocol = $rule.Protocol
        Write-Host "NSGRuleProtocol" NSGRuleProtocol
        foreach ($sport in $rule.SourcePortRange) {
            if ($sport -ne $rule.SourcePortRange[0]) {
                $sport = $sport + ";" + $sport
            }
            $NSGRuleSourcePortRange = $sport
            Write-Host "NSGRuleSourcePortRange" $NSGRuleSourcePortRange
        }
        foreach ($dport in $rule.DestinationPortRange) {
            if ($dport -ne $rule.DestinationPortRange[0]) {
                $dport = $dport + ";" + $dport
            }
            $NSGRuleDestinationPortRange = $dport
            Write-Host "NSGRuleDestinationPortRange" $NSGRuleDestinationPortRange
        }
        foreach ($sprefix in $rule.SourceAddressPrefix) {
            if ($sprefix -ne $rule.SourceAddressPrefix[0]) {
                $sprefix = $sprefix + ";" + $sprefix
            }
            $NSGRuleSourceAddressPrefix = $sprefix
            Write-Host "NSGRuleSourceAddressPrefix" $NSGRuleSourceAddressPrefix
        }
        foreach ($dprefix in $rule.DestinationAddressPrefix) {
            if ($dprefix -ne $rule.DestinationAddressPrefix[0]) {
                $dprefix = $dprefix + ";" + $dprefix
            }
            $NSGRuleDestinationAddressPrefix = $dprefix
            Write-Host "NSGRuleDestinationAddressPrefix" $NSGRuleDestinationAddressPrefix
        } 
        If ($rule.SourceApplicationSecurityGroups[0] -ne $null) {
            $NSGRuleSourceApplicationSecurityGroups = $rule.SourceApplicationSecurityGroups[0].id
            [Array]$NSGRuleASGSourceArray = $NSGRuleSourceApplicationSecurityGroups.Split("/")
            $NSGRuleSourceApplicationSecurityGroupName = $NSGRuleASGSourceArray[8]
            Write-Host "NSGRuleSourceApplicationSecurityGroupName" $NSGRuleSourceApplicationSecurityGroupName
        }
        If ($rule.DestinationApplicationSecurityGroups[0] -ne $null) {
            $NSGRuleDestinationApplicationSecurityGroups = $rule.DestinationApplicationSecurityGroups[0].id
            [Array]$NSGRuleASGDestinationArray = $NSGRuleDestinationApplicationSecurityGroups.Split("/")
            $NSGRuleDestinationApplicationSecurityGroupName = $NSGRuleASGDestinationArray[8]
            Write-Host "NSGRuleDestinationApplicationSecurityGroupName" $NSGRuleDestinationApplicationSecurityGroupName
        }      
        $NSGRuleAccess = $rule.Access 
        $NSGRulePriority = $rule.Priority 
        $NSGRuleDirection = $rule.Direction 
        Add-Content $LogFile $NSGName","$NSGRuleName","$NSGRuleProtocol","$NSGRuleSourcePortRange","$NSGRuleDestinationPortRange","$NSGRuleSourceAddressPrefix","$NSGRuleDestinationAddressPrefix","$NSGRuleSourceApplicationSecurityGroupName","$NSGRuleDestinationApplicationSecurityGroupName","$NSGRuleAccess","$NSGRulePriority","$NSGRuleDirection      
    } 
}