用PowerShell玩转文件处理

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Get-Content .\1.txt

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Get-Content .\1.txt -TotalCount 2

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Get-Content .\1.txt -Tail 2

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Get-Content .\1.txt | Select-String -Pattern "summer"

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Get-Content .\1.txt | Select-String -Pattern "summer"

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New-Item .\newfile.txt

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Set-Content .\newfile.txt "Hello, PowerShell!"

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Add-Content .\newfile.txt "Awesome!!!"

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Copy-Item .\newfile.txt .\helloworld.txt

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move-item .\helloworld.txt .\archive\

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Rename-Item .\newfile.txt .\newfile2.txt

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Remove-Item .\newfile2.txt

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Remove-Item .\archive\ -Recurse

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1..10 | ForEach-Object {
  $fileName = "demo$_.log"
  "This is log file number $_" | Set-Content -Path $fileName
}

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Get-ChildItem -Path .\ -Filter *.log

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Get-ChildItem -Path .\ -Filter *.log | ForEach-Object {
  Rename-Item $_ -NewName $_.Name.Replace("demo", "access_log_")
}

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Get-ChildItem | Sort-Object LastWriteTime -Descending

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Get-ChildItem -Path .\ -Filter *.log | Sort-Object LastAccessTime | ForEach-Object {Get-Content $_} | Set-Content access_log.log

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Compress-Archive -Path .\*.log -DestinationPath .\log.zip

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Expand-Archive -Path .\log.zip -DestinationPath .\unzipped_logs

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Get-ChildItem -Path .\ -Filter *.txt | Where-Object { Select-String -Path $_.FullName -Pattern "summer"}

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 Get-ChildItem -Path .\ -Filter *.txt | ForEach-Object {
  Select-String -Path $_.FullName -Pattern "summer"
}