As an SharePoint Administrator we always need to check if the site has Nintex Workflows. In Out of the Box it is very difficult or lengthy process to check the workflow of the site. Here PowerShell comes in picture. We can use PowerShell to determine if the site has Nintex Workflows.
if ( (Get-PSSnapin -Name Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue) -eq $null )
$nwadminCmd = “c:\program files\common files\Microsoft Shared\web server extensions\15\bin\nwadmin.exe”
& $nwadminCmd -o FindWorkflows
By this way we can find the Nintex workflows in the current or given site using PowerShell.