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

}

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.."

安装7zip(或下载命令行版本)并使用PowerShell方法:

function create-7zip([String] $aDirectory, [String] $aZipfile){
    [string]$pathToZipExe = "$($Env:ProgramFiles)\7-Zip\7z.exe";
    [Array]$arguments = "a", "-tzip", "$aZipfile", "$aDirectory", "-r";
    & $pathToZipExe $arguments;
}

你可以这样调用它:

create-7zip "c:\temp\myFolder" "c:\temp\myFolder.zip"

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

}

这里有一个完整的命令行示例，可以从cmd.exe或ssh或您想要的任何地方启动!

powershell.exe -nologo -noprofile -command "&{ Add-Type -A 'System.IO.Compression.FileSystem' [System.IO.Compression.ZipFile]::CreateFromDirectory('c:/path/to/source/folder/', 'c:/path/to/output/file.zip');}"

问候

我使用这个代码段检查数据库备份文件夹中尚未压缩的备份文件，使用7-Zip压缩它们，最后删除*.bak文件以节省一些磁盘空间。 注意文件在压缩前是按长度排序的(从最小到最大)，以避免一些文件没有被压缩。

$bkdir = "E:\BackupsPWS"
$7Zip = 'C:\"Program Files"\7-Zip\7z.exe'

get-childitem -path $bkdir | Sort-Object length |
where
{
    $_.extension -match ".(bak)" -and
    -not (test-path ($_.fullname -replace "(bak)", "7z"))
} |
foreach
{
    $zipfilename = ($_.fullname -replace "bak", "7z")
    Invoke-Expression "$7Zip a $zipfilename $($_.FullName)"
}
get-childitem -path $bkdir |
where {
    $_.extension -match ".(bak)" -and
   (test-path ($_.fullname -replace "(bak)", "7z"))
} |
foreach { del $_.fullname }

在这里，您可以检查PowerShell脚本通过FTP备份、压缩和传输这些文件。