给予下面另一种选择。这将压缩一个完整的文件夹，并将归档文件写入具有给定名称的给定路径。

要求。net 3或更高版本

Add-Type -assembly "system.io.compression.filesystem"

$source = 'Source path here'    
$destination = "c:\output\dummy.zip"

If(Test-path $destination) {Remove-item $destination}

[io.compression.zipfile]::CreateFromDirectory($Source, $destination)

这也可以在不使用临时文件夹的情况下压缩单个文件，并使用原生的。net 4.5，从c#转换到这个StackOverflow答案。它使用了更好的使用语法。

用法:

zipfile - zipfilen输出.zip -sourceFile输入。sql -file, inside.zip.sql

代码:

function ZipFiles([string] $zipFilename, [string] $sourceFile, [string] $filename)
{
    $fullSourceFile = (Get-Item -Path "$sourceFile" -Verbose).FullName
    $fullZipFile = (Get-Item -Path "$zipFilename" -Verbose).FullName

    Add-Type -AssemblyName System.IO
    Add-Type -AssemblyName System.IO.Compression
    Add-Type -AssemblyName System.IO.Compression.FileSystem

    Using-Object ($fs = New-Object System.IO.FileStream($fullZipFile, [System.IO.FileMode]::Create)) {
         Using-Object ($arch = New-Object System.IO.Compression.ZipArchive($fs, [System.IO.Compression.ZipArchiveMode]::Create)) {
             [System.IO.Compression.ZipFileExtensions]::CreateEntryFromFile($arch, $fullSourceFile, $filename)
        }
    }
}

使用:

function Using-Object
{
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [AllowEmptyString()]
        [AllowEmptyCollection()]
        [AllowNull()]
        [Object]
        $InputObject,

        [Parameter(Mandatory = $true)]
        [scriptblock]
        $ScriptBlock
    )

    try
    {
        . $ScriptBlock
    }
    finally
    {
        if ($null -ne $InputObject -and $InputObject -is [System.IDisposable])
        {
            $InputObject.Dispose()
        }
    }
}

这很晦涩，但很有效。7za.exe是7zip的独立版本，可通过安装包获得。

# get files to be send
$logFiles = Get-ChildItem C:\Logging\*.* -Include *.log | where {$_.Name -match $yesterday} 

foreach ($logFile in $logFiles)
{
    Write-Host ("Processing " + $logFile.FullName)

    # compress file
    & ./7za.exe a -mmt=off ($logFile.FullName + ".7z") $logFile.FullName

}

Windows下压缩解压目录的完整命令行如下:

压缩: powershell.exe -nologo -noprofile -command "&{添加- type -A 'System.IO.Compression.FileSystem';[IO.Compression.ZipFile]:: CreateFromDirectory (C: \印度河,“C: \ Indus.zip”);}” 提取: powershell.exe -nologo -noprofile -command "& {Add-Type -A 'System.IO.Compression.FileSystem';[IO.Compression.ZipFile]::ExtractToDirectory('C:\ industrial .zip'，'C:\Indus');}”

System.IO.Packaging.ZipPackage呢?

它需要。net 3.0或更高版本。

#Load some assemblys. (No line break!)
[System.Reflection.Assembly]::Load("WindowsBase, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")

#Create a zip file named "MyZipFile.zip". (No line break!)
$ZipPackage=[System.IO.Packaging.ZipPackage]::Open("C:\MyZipFile.zip",
   [System.IO.FileMode]"OpenOrCreate", [System.IO.FileAccess]"ReadWrite")

#The files I want to add to my archive:
$files = @("/Penguins.jpg", "/Lighthouse.jpg")

#For each file you want to add, we must extract the bytes
#and add them to a part of the zip file.
ForEach ($file In $files)
{
   $partName=New-Object System.Uri($file, [System.UriKind]"Relative")
   #Create each part. (No line break!)
   $part=$ZipPackage.CreatePart($partName, "",
      [System.IO.Packaging.CompressionOption]"Maximum")
   $bytes=[System.IO.File]::ReadAllBytes($file)
   $stream=$part.GetStream()
   $stream.Write($bytes, 0, $bytes.Length)
   $stream.Close()
}

#Close the package when we're done.
$ZipPackage.Close()

通过安德斯·赫塞尔博姆

下面是工作代码，压缩源文件夹中的所有文件，并在目标文件夹中创建一个zip文件。

    $DestZip="C:\Destination\"
    $Source = "C:\Source\"

    $folder = Get-Item -Path $Source

    $ZipTimestamp = Get-Date -format yyyyMMdd-HHmmss;
    $ZipFileName  = $DestZip + "Backup_" + $folder.name + "_" + $ZipTimestamp + ".zip" 

    $Source

    set-content $ZipFileName ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18)) 
    # Wait for the zip file to be created.
    while (!(Test-Path -PathType leaf -Path $ZipFileName))
    {    
        Start-Sleep -Milliseconds 20
    } 
    $ZipFile = (new-object -com shell.application).NameSpace($ZipFileName)

    Write-Output (">> Waiting Compression : " + $ZipFileName)       

    #BACKUP - COPY
    $ZipFile.CopyHere($Source) 

    $ZipFileName
    # ARCHIVE

    Read-Host "Please Enter.."