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How to create a zip archive with PowerShell?


Question

Is it possible to create a zip archive using PowerShell?

2020/02/09
1
247
2/9/2020 8:24:00 PM

Accepted Answer

If you head on over to CodePlex and grab the PowerShell Community Extensions, you can use their write-zip cmdlet.

Since

CodePlex is in read-only mode in preparation for shutdown

you can go to PowerShell Gallery.

2018/08/02
125
8/2/2018 12:53:35 PM


PowerShell v5.0 adds Compress-Archive and Expand-Archive cmdlets. The linked pages have full examples, but the gist of it is:

# Create a zip file with the contents of C:\Stuff\
Compress-Archive -Path C:\Stuff -DestinationPath archive.zip

# Add more files to the zip file
# (Existing files in the zip file with the same name are replaced)
Compress-Archive -Path C:\OtherStuff\*.txt -Update -DestinationPath archive.zip

# Extract the zip file to C:\Destination\
Expand-Archive -Path archive.zip -DestinationPath C:\Destination
2015/03/26

A native way with latest .NET 4.5 framework, but entirely feature-less:

Creation:

Add-Type -Assembly "System.IO.Compression.FileSystem" ;
[System.IO.Compression.ZipFile]::CreateFromDirectory("c:\your\directory\to\compress", "yourfile.zip") ;

Extraction:

Add-Type -Assembly "System.IO.Compression.FileSystem" ;
[System.IO.Compression.ZipFile]::ExtractToDirectory("yourfile.zip", "c:\your\destination") ;

As mentioned, totally feature-less, so don't expect an overwrite flag.

UPDATE: See below for other developers that have expanded on this over the years...

2018/09/19

Install 7zip (or download the command line version instead) and use this PowerShell method:

function create-7zip([String] $aDirectory, [String] $aZipfile){
    [string]$pathToZipExe = "$($Env:ProgramFiles)\7-Zip\7z.exe";
    [Array]$arguments = "a", "-tzip", "$aZipfile", "$aDirectory", "-r";
    & $pathToZipExe $arguments;
}

You can the call it like this:

create-7zip "c:\temp\myFolder" "c:\temp\myFolder.zip"
2015/03/12

Lot has changed since the initial answer was posted. Here are some of the latest examples using Compress-Archive command.

Command to create new archive file, Draft.zip, by compressing two files, Draftdoc.docx and diagram2.vsd, specified by the Path parameter. The compression level specified for this operation is Optimal.

Compress-Archive -Path C:\Reference\Draftdoc.docx, C:\Reference\Images\diagram2.vsd -CompressionLevel Optimal -DestinationPath C:\Archives\Draft.Zip

Command to creates new archive file, Draft.zip, by compressing two files, Draft doc.docx and Diagram [2].vsd, specified by the LiteralPath parameter. The compression level specified for this operation is Optimal.

Compress-Archive -LiteralPath 'C:\Reference\Draft Doc.docx', 'C:\Reference\Images\Diagram [2].vsd'  -CompressionLevel Optimal -DestinationPath C:\Archives\Draft.Zip

Command to create new archive file, Draft.zip, in the C:\Archives folder. The new archive file contains every file in the C:\Reference folder, because a wildcard character was used in place of specific file names in the Path parameter.

Compress-Archive -Path C:\Reference\* -CompressionLevel Fastest -DestinationPath C:\Archives\Draft

Command creates an archive from an entire folder, C:\Reference

Compress-Archive -Path C:\Reference -DestinationPath C:\Archives\Draft

PowerShell appends the .zip extension to the file name automatically.


Edit two - This code is an ugly, ugly kluge from olden days. You do not want it.

This compresses the contents of .\in to .\out.zip with System.IO.Packaging.ZipPackage following the example here

$zipArchive = $pwd.path + "\out.zip"
[System.Reflection.Assembly]::Load("WindowsBase,Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")
$ZipPackage=[System.IO.Packaging.ZipPackage]::Open($zipArchive,
  [System.IO.FileMode]"OpenOrCreate", [System.IO.FileAccess]"ReadWrite")
$in = gci .\in | select -expand fullName
[array]$files = $in -replace "C:","" -replace "\\","/"
ForEach ($file In $files)
{
   $partName=New-Object System.Uri($file, [System.UriKind]"Relative")
   $part=$ZipPackage.CreatePart($partName, "application/zip",
      [System.IO.Packaging.CompressionOption]"Maximum")
   $bytes=[System.IO.File]::ReadAllBytes($file)
   $stream=$part.GetStream()
   $stream.Write($bytes, 0, $bytes.Length)
   $stream.Close()
}
$ZipPackage.Close()

Edit: Unreliable for larger files, maybe >10mb, YMMV. Something to do with appdomain evidence and isolated storage. The friendlier .NET 4.5 approach works nicely from PS v3, but wanted more memory in my case. To use .NET 4 from PS v2, config files need an unsupported tweak.

2017/05/23

Source: https://stackoverflow.com/questions/1153126
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