Powershell在文件中移动行

Question

这似乎太简单了，我很不好意思问。

我有一个文件，它的行数未知，但至少有20行。我总是希望将第4-6行移到第1-3行。

所以这个：

A

B

C

D

E

F

G

H

变成这样：

D

E

F

A

B

C

G

H

Answer 1

$path = "C:\xxxx"
$pathnew = $path + "\new"
If(!(test-path $pathnew))
{
      New-Item -ItemType Directory -Force -Path $pathnew
}


[System.Collections.ArrayList]$Files = @(Get-ChildItem $path -Filter *.json |
    Where-Object {$_.PSIsContainer -eq $false} | 
    Select-Object FullName,Name)

foreach ($File in $Files) {
    [System.Collections.ArrayList]$File_Contents = @(Get-Content $File.FullName)

    $FN = $File.FullName 
    $OutPutFile = $pathnew + "\" + $File.Name 

    $txt = Get-Content $FN
    $txt2 = Get-Content $FN | Measure-Object -Line 
    $txtLess3 = $txt2.Lines-3
    $txt[6..12],"`"submission`": {",$txt[1..3]
    ,"  `"performanceYear`": 2019},"
    ,$txt[13..$txtLess3] | Out-File $OutPutFile 
}

Answer 2

$Lines = 'A'..'H'
$Lines[3..5],$Lines[0..2],$Lines[6..99]

或

$Lines[3,4,5,0,1,2,6,7,8,9]

有关详细信息，请参阅：关于数组