Here are a few fuctions on how to create, update and extract a zip file within powershell.
1. Create a New Zip
function New-Zip{
param([string]$zipfilename)
set-content $zipfilename (“PK” + [char]5 + [char]6 + (“$([char]0)” * 18))
(dir $zipfilename).IsReadOnly = $false}
usage: new-zip c:demomyzip.zip
2. Add files to a zip via a pipeline
function Add-Zip
{param([string]$zipfilename)
if(-not (test-path($zipfilename))){
set-content $zipfilename (“PK” + [char]5 + [char]6 + (“$([char]0)” * 18))
(dir $zipfilename).IsReadOnly = $false}
$shellApplication = new-object -com shell.application
$zipPackage = $shellApplication.NameSpace($zipfilename)
foreach($file in $input)
{
$zipPackage.CopyHere($file.FullName)
Start-sleep -milliseconds 500
}}
usage: dir c:zipFiles*.* -Recurse | add-Zip c:zipFile.zip
3. List the files in a zip
function Get-Zip
{
param([string]$zipfilename)
if(test-path($zipfilename)){
$shellApplication = new-object -com shell.application
$zipPackage = $shellApplication.NameSpace($zipfilename)
$zipPackage.Items() | Select Path}
}
usage: Get-Zip c:zipFile.zip
4. Extract the files form the zip
function Extract-Zip
{
param([string]$zipfilename, [string] $destination)
if(test-path($zipfilename)){
$shellApplication = new-object -com shell.application
$zipPackage = $shellApplication.NameSpace($zipfilename)
$destinationFolder = $shellApplication.NameSpace($destination)
$destinationFolder.CopyHere($zipPackage.Items())}
}
usage: extract-zip c:zipFile.zip c:destination