The Community Book of Powershell Practices Master by Powershell.org - HTML preview

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3. OUT-01 Don’t use write-host unless writing to the host is all you want to do

It is generally accepted that you should never use Write-Host to create any script output whatsoever, unless your script (or function, or whatever) uses the Show verb (as in, Show-Performance). That verb explicitly means “show on the screen, with no other possibilities.” Like Show-Command.