PowerShell zip/unzip files

最近因需要对zip文件进行批量的压缩解压，遂想到用Powershell完成，正好可以借此熟悉一下基本用法。

通过自定义function可以很方便的完成我们想到的效果。

 

1.  解压文件

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())
	}
}

 

使用方法：

# extract all files from myzip.zip file to a directory
extract-zip c:\demo\myzip.zip c:\demo\destination

# extract all files from a list of zip files to a directory
dir c:\demo\*.zip | foreach-object { extract-zip $_.fullname c:\demo\destination }

 

 

2.  压缩文件

function Add-Zip
{
	param([string]$sourcefiles, [string]$zipfilename)
    
	dir $sourcefiles | foreach-object {
	 if(!$zipfilename) {
		$zipfile = $_.FullName + ".zip";
	 }
	else {
		$zipfiles = $zipfilename;
	}
        
	if(!(test-path($zipfile))) {
		set-content $zipfile ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18));
		(dir $zipfile).IsReadOnly = $false;
    	}
        
	$shellApplication = new-object -com shell.application;
	$zipPackage = $shellApplication.NameSpace($zipfile);
	$zipPackage.CopyHere(($_.FullName));
	}
}

 

使用方法：

# add files to myzip.zip file
add-zip c:\demo\*.csv c:\demo\myzip.zip

# add files to zip files one by one (abc01.csv -> abc01.csv.zip)
add-zip c:\demo\*.csv

 

以上function 以及使用方法在windows xp, powershell v2.0 环境上测试通过。

get-host

 

参考资料：

Compress Files with Windows PowerShell then package a Windows Vista Sidebar Gadget