CODEWITHSUNDEEP
powershell
VoidStar
VoidStar

Reputation: 5421

Boolean-and all incoming pipeline objects in powershell

What is the most convenient way to 'and' together a pipeline, such that the returned value is true iff every incoming object evaluated to true? Such as:

$fileList | % { Test-Path $_ } | Boolean-And

The above snippet should be testing that every file in fileList exists. But there is no 'Boolean-And' function. Is there a different name/way to do this?

Upvotes: 1

Views: 435

Answers (1)

mjolinor
mjolinor

Reputation: 68331

Another possibility:

@($fileList | % { Test-Path $_ }) -notcontains $false

As a pipeline function:

function And-Boolean
 { $input -notcontains $false }

Upvotes: 3

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