Powershell gotchas: xml.save needs an absolute path

May 25, 2012

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If given a relative path, xml.Save will do nothing, giving no error messages or anything.

$xml = [xml]'<root><item>1</item></root>'
$xml.Save('.foo.xml')                              # Outputs nothing.
$xml.Save((join-path (pwd) -ChildPath '.foo.xml')) # Actually writes