(PowerShell) Unzip Selected Files from a Zip Archive

Demonstrates how to iterate over the files contained within a .zip and unzip specific files.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$zip = New-Object Chilkat.Zip

$success = $zip.OpenZip("my_files.zip")
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

$unzipDir = "/temp/unzipDir"

# Get the number of files and directories in the .zip
$n = $zip.NumEntries
$($n)

for ($i = 0; $i -le $n - 1; $i++) {

    $entry = $zip.GetEntryByIndex($i)
    if ($entry.IsDirectory -eq $false) {
        # (the filename may include a path)
        $($entry.FileName)

        # Your application may choose to unzip this entry
        # based on the filename.
        # If the entry should be unzipped, then call Extract(unzipDir)
        $success = $entry.Extract($unzipDir)
        if ($success -ne $true) {
            $($entry.LastErrorText)
            exit
        }

    }

}