从多个 Zip 文件中提取特定文件类型到 Powershell 中的一个文件夹 [英] Extract Specific Filetypes From Multiple Zips to one Folder in Powershell

问题描述

我有几个包含多种文件类型的 zip 文件.我唯一感兴趣的是 .txt 文件.我只需要提取 .txt 文件并将它们放在自己的文件夹中，忽略 zip 文件中的所有其他文件类型.

I have Several zip files that Contain multiple filetypes. The ONLY ones I am interested in are the .txt files. I need to extract the .txt files only and place them in a folder of their own, ignoring all other file types in the zips files.

所有 zip 文件都在同一个文件夹中.

All the zip files are in the same folder.

示例

-foo.zip

--1.aaa
--2.bbb
--3.ccc
--4.txt

-foo2.zip

--5.aaa
--6.bbb
--7.ccc
--8.txt

我想将 4.txt 和 8.txt 提取到另一个文件夹.我一生都无法弄清楚，花了很多年的时间寻找、谷歌搜索和尝试.甚至设法偶尔删除到 zips :-)

I want to have 4.txt and 8.txt extracted to another folder. I can't for the life of my figure it out and spent ages looking, googling and trying. Even managing to delete to zips once in a while :-)

提前致谢

推荐答案

使用 ZipArchive 类型以在提取前以编程方式检查存档:

Use the ZipArchive type to programmatically inspect the archive before extracting:

Add-Type -AssemblyName System.IO.Compression

$destination = "C:destinationfolder"

# Locate zip file
$zipFile = Get-Item C:path	ofile.zip

# Open a read-only file stream
$zipFileStream = $zipFile.OpenRead()

# Instantiate ZipArchive
$zipArchive = [System.IO.Compression.ZipArchive]::new($zipFileStream)

# Iterate over all entries and pick the ones you like
foreach($entry in $zipArchive.Entries){
    if($entry.Name -like '*.txt'){
        # Create new file on disk, open writable stream
        $targetFileStream = $(
            New-Item -Path $destination -Name $entry.Name -ItemType File
        ).OpenWrite()

        # Open stream to compressed file, copy to new file stream
        $entryStream = $entry.Open()
        $entryStream.BaseStream.CopyTo($targetFileStream)

        # Clean up
        $targetFileStream,$entryStream |ForEach-Object Dispose
    }
}

# Clean up
$zipArchive,$zipFileStream |ForEach-Object Dispose

对每个 zip 文件重复.

Repeat for each zip file.

请注意，上面的代码具有非常少的错误处理，可以将其视为示例

Note that the code above has very minimal error-handling, and is to be read as an example

这篇关于从多个 Zip 文件中提取特定文件类型到 Powershell 中的一个文件夹的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！