You don't need to `foreach { Remove-Item $_.Name }` because Remove-Item can take the objects returned by Get-ChildItem directly. Also, expanding the regex into

You don't need to `foreach { Remove-Item $_.Name }` because Remove-Item can take the objects returned by Get-ChildItem directly. Also, expanding the regex into `-Include` parameters is somewhat cheating since `-Include` only takes globs, and it just so happens that that particular regex can be converted into globs. The general equivalent is: gci -re | ?{ $_.Name -match '.*_test\.(py|cc)' } | ri (I used the shorter aliases because someone will probably read yours and reinforce the stereotype that PS is overly verbose.)