![]() #for example, let's output the content to the screen #now we have a streamreader, we can do all the things $entry = $zipFile.GetEntry('ffmpeg-latest-win64-dev/include/libavutil/aes.h') #oh, there's my `aes.h` inside `ffmpeg-latest-win64-dev/include/libavutil/` $zipFile.Entries | Select-Object -ExcludeProperty | Format-Table #I don't care about 'Archive' or 'ExternalAttributes', so I instruct suppress those #Write the archive contents to the shell output #OK, what's in the archive I just downloaded? $zipStream = New-Object System.IO.Memorystream $IWRresult = Invoke-WebRequest -Uri "" -SslProtocol Tls12 -Method Get Here is an example in which I find aes.h inside the ffmpeg source code zip archive: ::LoadWithPartialName('System.IO.Compression') Ordinary zip file in memoryĪs a bonus, let's see how it works with ZIP. This option tells tar to display the names of the files being extracted on the terminal. ![]() For more verbose output, use the -v option. Tar auto-detects the compression type and extracts the archive. To extract a tar.xz file, invoke the tar command with the -extract ( -x) option and specify the archive file name after the -f option: tar -xf. Since the Windows 10 Preview Build 17063, bsdtar is included with PowerShell. However, 7Zip4PowerShell does not implement all the overloaded method signatures of SevenZipExtractor Import-Module -Name 7Zip4Powershell -Global If we were writing the file to disk, the objective is more simple to achieve using the 7Zip4Powershell module. Here is a working example I wrote that implements the above approach to download and install ffmpeg. $szExtractor = New-Object -TypeName SevenZipExtractor.ArchiveFile -ArgumentList # Instead of $env:TEMP, wherever you want the files to go So we can use the SevenZipExtractor class by $sevenZipStream = ::new(($r.Content)) Here Stream means data-type System.IO.Stream and SevenZipFormat means type SevenZipExtractor.SevenZipFormat. Public SevenZipExtractor(Stream archiveStream, string password, InArchiveFormat format) Public SevenZipExtractor(Stream archiveStream, SevenZipFormat format) ![]() Public SevenZipExtractor(Stream archiveStream, string password) The SevenZipExtractor class includes, inter alia, the following overloaded constructor signatures: public SevenZipExtractor(Stream archiveStream) (Get-Item (Join-Path (Split-Path (Get-Package SevenZipExtractor).Source) lib/netstandard*) | #Add the SevenZip assembly to our current PowerShell session Install-Package SevenZipExtractor -Scope CurrentUser Using SevenZipExtractor C# wrapper for 7Zip, we extract as follows: #Download and install from Our target archive is available to shell as a byte array in $r.Content. We can download without writing to disk as follows: $r=Invoke-WebRequest -Uri '' Without writing anything to diskīy example, suppose we want to download/extract files from the XZ archive available at MinGW - Minimalist GNU for Windows. I describe two approaches to achieve the objective. Challenge: Download, extract xz archive in PowerShell ![]()
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