How to do IIS Reset in all the servers in a SharePoint Farm

It was awesome artcile and powersheel script has been written by Juan Carlos González on Technet,below is the URL:

https://gallery.technet.microsoft.com/office/How-to-do-an-IIS-Reset-in-44a50e11

I am not author for this article just posting to reach out the peoples who needed.

Summary:  This script allows to do an IIS Reset to all the servers (Web Front End and Application Servers) in a SharePoint farm (2010 and 2013 SharePoint versions). The script defines a function that uses the Get-SPServer cmdlet in order to get all the servers where the IIS reset operation

We use when we want to perform an IISRESET across an entire SharePoint farm. It’s useful if you have a large SharePoint farm.
This will take down your farm while the IISRESET is restarting the services, so it’s best to test this on a non-production environment first. Ensure you have an outage/agreed maintenance window to perform this task on a production farm.

All you got to do is spin up Power Shell on any SharePoint server in the farm and run this:

############################################################################################################################################

# This Scrip allows todo an IIS RESET to all the servers in a SharePoint Farm

# Requited parameters: N/A

############################################################################################################################################

If ((Get-PSSnapIn -Name Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue) -eq $null )

{ Add-PSSnapIn -Name Microsoft.SharePoint.PowerShell }

$host.Runspace.ThreadOptions = "ReuseThread"

#Definition of the funcion that performs the IIS RESET in all the servers

function Do-IISReset

{   

    try

    {       

        #Getting the servers where the IISReset is going to be done

        $spServers= Get-SPServer | ? {$_.Role -eq "Application"}

        foreach ($spServer in $spServers)

        {           

            Write-Host "Doing IIS Reset in server $spServer" -f blue

            iisreset $spServer /noforce "\\"$_.Address

            iisreset $spServer /status "\\"$_.Address

        }       

        Write-Host "IIS Reset completed successfully!!" -f blue 

    }

    catch [System.Exception]

    {

        write-host -f red $_.Exception.ToString()

    }

}

Start-SPAssignment –Global

#Calling the function

Do-IISReset

Stop-SPAssignment –Global

Remove-PSSnapin Microsoft.SharePoint.PowerShell

Save above file in .ps1 format and run using power shell with admin rights or windows Power shell ISE and run this file on any of App server in Farm.