powershell foreach-object with if statements - Stack Overflow

You need to remove leading and (or) trailing spaces. Try this:

$ht=@{}    Get-Content $filename | foreach{        $key,$value = $_.Split('=') | foreach {$_.Trim()}        if($key -like "line2")      {         $key = "line2 has been changed"      }        if($value -like "value2")      {          $value = "value2 has been changed"      }        $ht.Add($key,$value)  }    $ht.GetEnumerator() | Sort-Object name

Read full article from powershell foreach-object with if statements - Stack Overflow