Unzip a file using powershell

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Unzipping a file on your PowerShell command line may come in handy sometimes, when the winzip or default compression is not working. All that is required is PowerShell and the .NET 4.5 Framework.

A simple way of using ExtractToDirectory from System.IO.Compression.ZipFile:

Add-Type -AssemblyName System.IO.Compression.FileSystem
function unzip {
    param( [string]$ziparchive, [string]$extractpath )
    [System.IO.Compression.ZipFile]::ExtractToDirectory( $ziparchive, $extractpath )
}

unzip "D:\file.zip" "C:\temp"

in PowerShell 5.0, there is an Expand-Archive command built in:

Expand-Archive D:\file.zip -DestinationPath C:\temp

To compress, you can use Compress-Archive.

Use the automatic $PSVersionTable variable, and check the PSVersionproperty, to get the PowerShell version. For example: $PSVersionTable.PSVersionP

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