How to unzip a file in Powershell?

Question

I have a .zip file and need to unpack its entire content using Powershell. I\'m doing this but it doesn\'t seem to work:

$shell = New-Object -Co         


        

Answer 1

Here is a simple way using ExtractToDirectory from System.IO.Compression.ZipFile:

Add-Type -AssemblyName System.IO.Compression.FileSystem
function Unzip
{
    param([string]$zipfile, [string]$outpath)

    [System.IO.Compression.ZipFile]::ExtractToDirectory($zipfile, $outpath)
}

Unzip "C:\a.zip" "C:\a"

Note that if the target folder doesn't exist, ExtractToDirectory will create it. Other caveats:

• Existing files will not be overwritten and instead trigger an IOException.
• This method requires at least .NET Framework 4.5, available for Windows Vista and newer.
• Relative paths are not resolved based on the current working directory, see Why don't .NET objects in PowerShell use the current directory?

See also:

• How to Compress and Extract files (Microsoft Docs)