<# .SYNOPSIS Checks the given XML file for validity .DESCRIPTION This PowerShell script checks the given XML file for validity. .PARAMETER file Specifies the path to the XML file to check .EXAMPLE PS> ./check-xml-file myfile.xml ✔️ XML file is valid .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz / License: CC0 #> param([string]$file = "") try { if ($file -eq "" ) { $file = read-host "Enter path to XML file" } $XmlFile = Get-Item $file $script:ErrorCount = 0 # Perform the XSD Validation $ReaderSettings = New-Object -TypeName System.Xml.XmlReaderSettings $ReaderSettings.ValidationType = [System.Xml.ValidationType]::Schema $ReaderSettings.ValidationFlags = [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessInlineSchema -bor [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessSchemaLocation $ReaderSettings.add_ValidationEventHandler({ $script:ErrorCount++ }) $Reader = [System.Xml.XmlReader]::Create($XmlFile.FullName, $ReaderSettings) while ($Reader.Read()) { } $Reader.Close() if ($script:ErrorCount -gt 0) { write-warning "Invalid XML file" exit 1 } "✔️ XML file is valid" exit 0 # success } catch { "⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))" exit 1 }