使用PowerShell從文本文件添加或刪除文本

Question

我正在使用PowerShell從文件中添加或刪除文本。 我一直在文件中收到有趣的文字。

僅當我從文本文件中刪除該行並且嘗試添加新行時，才會出現有趣的文本。

cls
IMPORT-MODULE ActiveDirectory

$fileLocation = "E:\Script\MatchCadTest\ptc.opt";

function addUser( $username=''){

    $user = Get-ADUser -Identity $username -ErrorAction SilentlyContinue;
    $userFullName = $user.Name;
    $empty = [string]::IsNullOrEmpty($userFullName);

    if ( !($empty) ){
        $userExisted = Get-Content $fileLocation | Select-String "$username" -quiet

        if( ! $userExisted ){
            $newLocation =  "E:\Script\MatchCadTest\backup\";

            if((Test-Path -Path $fileLocation)) {
               Copy-Item "$fileLocation" "$newLocation"
            }

            $date = Get-Date -Format "d-M-y Hms";
            $newName = "ptc_$date.opt"
            Rename-Item "$newLocation\ptc.opt" $newName

            # Add-Content $fileLocation ""
            Add-Content  -Path $fileLocation -Value "# $userFullName";
            Add-Content  -Path $fileLocation -Value "INCLUDE MATHCAD USER $username";

            Write-Host "User has been added to file. Please restart the service." -BackgroundColor Green -ForegroundColor Black
        }
        else{
            Write-Host "User already existed" -BackgroundColor Red -ForegroundColor White
        }
    }
}

function removeUser( $username=''){
    $user = Get-ADUser -Identity $username -ErrorAction SilentlyContinue;
    # $user
    $userFullName = $user.Name;
    $empty = [string]::IsNullOrEmpty($userFullName);

    if ( !($empty) ){
        $userExisted = Get-Content $fileLocation | Select-String "$username" -quiet
        if( $userExisted ){
            $remove="# $userFullName";
            $removeUser = (Get-Content $fileLocation);
            $removeUser | where {$_ -ne $remove};

            $remove="INCLUDE MATHCAD USER $username";
            $removeUser | where {$_ -ne $remove}

            $removeUser |Out-File $fileLocation;

            #$removeUser = (Get-Content $fileLocation) | where {$_ -ne $remove} | Out-File $fileLocation;

            #$content = Get-Content $fileLocation
            #$content | Foreach {$_.TrimEnd()} | Set-Content $fileLocation

            Write-Host "User removed" -BackgroundColor Green -ForegroundColor Black
        }
        else{
            Write-Host "User does not existed" -BackgroundColor Red -ForegroundColor White
        }
    }
    else{
        Write-Host "User not found in ad" -BackgroundColor Red -ForegroundColor White
    }
}


$option=''
while ( $option -ne 0){

    Write-Host "What would you like to do?"
    Write-Host "1= Add new user"
    Write-Host "2=  Remove user"
    Write-Host "0= No (Exit)"

    $option = Read-Host "Select option"
    $username = Read-Host "Please enter Username"
    if( $option -eq 0 ){
        exit 1
    }

    elseif( $option -eq 1){
        addUser($username);
    }
    elseif ( $option -eq 22){
        removeUser ($username);
    }

    else{
        cls
        Write-Host
        Write-Host " Invaild Choice  " -BackgroundColor Red #-ForegroundColor White
        Write-Host
    }

    #Reset
    $option=444;
    $username="";
    $userFullName="";
    $user="";
    $empty="";
}

當我從文件中刪除一行文本並添加一個新用戶時，這都是一個有趣的文本字符串：

見下文

‣濰慨浭摡䴠橡摩਍義䱃䑕⁅䅍䡔䅃⁄單剅洠ㅭ㘳㐰ല

我有一個包含以下信息的文本文件。

- // Full name 1
- User ID of User 1

- // Full name 2
- User ID of User 2

* // Full name 3
* User ID of User 3

* // Full name 4
* User ID of User 4

* // Full name 5
* User ID of User 5

* // Full name 6
* User ID of User 6

* // Full name 7
* User ID of User 7

* // Full name 8
* User ID of User 8

如果您看到用戶5和6或7和8有多余的空間，我不會刪除它們，而只會增加空間。

Answer 1

我認為您需要為Add-Content設置編碼

嘗試： Add-Content -Encoding UTF8 -Path $fileLocation -Value "# $userFullName";