使用PowerShell从文本文件中添加或删除文本

我正在使用PowerShell添加或删除文件中的文本。我的文件里一直有有趣的文字

只有当我从文本文件中删除该行，并且当我尝试添加新行时，才会得到有趣的文本

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="";
}

当我从文件中删除一行文本并添加新用户时，这都是一个有趣的文本字符串：

见下文

"潍慨浭摡䴠橡摩਍义䱃䑕⁅䅍䡔䅃⁄单剅洠ㅭ㘳㐰ല

我有一个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

---

如果您看到用户5和6或7和8有额外的空间，我不会删除这些空间，只在空间中添加广告。

我认为您需要为添加内容设置编码

---

尝试：添加内容-编码UTF8-路径$fileLocation-值$userFullName

它们是我可以从文本文件中删除行的任何方法。例如，如果它们是两行，我不想删除它们，但如果它们是文本之间的一行空白，我就不想留下。@hello-我不确定我是否完全理解这个问题。您应该能够相互比较行内容，或者使用正则表达式查找特定内容并基于该内容执行删除/删除。你能举个例子说明你在问什么吗？我在顶部添加了更多的信息。@hello-这应该是直截了当的。创建一个变量，并在每次读取行时将其存储在变量中。您读取的每一行都将其与变量中的行进行比较。然后做一个类似的比较：如果line1==变量，line1=={delete line}或者{do nothing}这只是伪代码，但我想你明白了。