自定义 PowerShell 提示 - 相当于 CMD 的 $M$P$_$+$G?

Question

我已经开始“玩弄” PowerShell，并试图让它“表现”。

我想做的一件事是将 PROMPT 自定义为“类似于”在 MS-Dos 上执行的“$M$P$_$+$G”：

这些功能的简要说明：

人物|说明
$m 与当前驱动器号关联的远程名称，如果当前驱动器不是网络驱动器，则为空字符串。
$p 当前驱动器和路径
$_ ENTER-LINEFEED
$+ 零个或多个加号（+ ) 字符取决于 pushd 目录堆栈的深度，每个推送的级别一个字符
$g >（大于号）

所以最终的输出是这样的：

    \\spma1fp1\JARAVJ$ H:\temp
    ++>

我已经能够将$M 和$_ 功能（和一个漂亮的历史功能）添加到我的提示中，如下所示：

function prompt
{
   ## Get the history. Since the history may be either empty,
   ## a single item or an array, the @() syntax ensures
   ## that PowerShell treats it as an array
   $history = @(get-history)


   ## If there are any items in the history, find out the
   ## Id of the final one.
   ## PowerShell defaults the $lastId variable to '0' if this
   ## code doesn't execute.
   if($history.Count -gt 0)
   {
      $lastItem = $history[$history.Count - 1]
      $lastId = $lastItem.Id
   }

   ## The command that we're currently entering on the prompt
   ## will be next in the history. Because of that, we'll
   ## take the last history Id and add one to it.
   $nextCommand = $lastId + 1

   ## Get the current location
   $currentDirectory = get-location

   ## Set the Windows Title to  the current location
   $host.ui.RawUI.WindowTitle = "PS: " + $currentDirectory

   ## And create a prompt that shows the command number,
   ## and current location
   "PS:$nextCommand $currentDirectory
>"
}

但其余的还不是我设法复制的东西......

非常感谢您肯定会提供的提示！

Answer 1

感谢以下提示：

In PowerShell, how can I determine if the current drive is a networked drive or not?
In PowerShell, how can I determine the root of a drive (supposing it's a networked drive)

我已经设法让它工作了。

我的完整个人资料是：

function prompt
{
   ## Initialize vars
   $depth_string = ""

   ## Get the Stack -Pushd count
   $depth = (get-location -Stack).count

   ## Create a string that has $depth plus signs
   $depth_string = "+" * $depth

   ## Get the history. Since the history may be either empty,
   ## a single item or an array, the @() syntax ensures
   ## that PowerShell treats it as an array
   $history = @(get-history)


   ## If there are any items in the history, find out the
   ## Id of the final one.
   ## PowerShell defaults the $lastId variable to '0' if this
   ## code doesn't execute.
   if($history.Count -gt 0)
   {
      $lastItem = $history[$history.Count - 1]
      $lastId = $lastItem.Id
   }

   ## The command that we're currently entering on the prompt
   ## will be next in the history. Because of that, we'll
   ## take the last history Id and add one to it.
   $nextCommand = $lastId + 1

   ## Get the current location
   $currentDirectory = get-location

   ## Set the Windows Title to  the current location
   $host.ui.RawUI.WindowTitle = "PS: " + $currentDirectory

        ## Get the current location's DRIVE LETTER
        $drive = (get-item ($currentDirectory)).root.name

        ## Make sure we're using a path that is not already UNC
        if ($drive.IndexOf(":") -ne "-1")
            {
                $root_dir = (get-wmiobject Win32_LogicalDisk | ? {$_.deviceid -eq $drive.Trim("\") } | % { $_.providername })+" "
          }
          else
          {
            $root_dir=""
          }


   ## And create a prompt that shows the command number,
   ## and current location
   "PS:$nextCommand $root_dir$currentDirectory `n$($depth_string)>"
}

Answer 2

以下将为您提供 $m 的等价物。

$mydrive = $pwd.Drive.Name + ":";
$networkShare = (gwmi -class "Win32_MappedLogicalDisk" -filter "DeviceID = '$mydrive'");

if ($networkShare -ne $null)
{
    $networkPath = $networkShare.ProviderName
}

Answer 3

感谢 EBGReens 的回答，我的“提示”现在能够显示堆栈的深度：

 function prompt
 {
    ## Initialize vars
    $depth_string = ""

    ## Get the Stack -Pushd count
    $depth = (get-location -Stack).count

    ## Create a string that has $depth plus signs
    $depth_string = "+" * $depth

    ## Get the history. Since the history may be either empty,
    ## a single item or an array, the @() syntax ensures
    ## that PowerShell treats it as an array
    $history = @(get-history)


    ## If there are any items in the history, find out the
    ## Id of the final one.
    ## PowerShell defaults the $lastId variable to '0' if this
    ## code doesn't execute.
    if($history.Count -gt 0)
    {
       $lastItem = $history[$history.Count - 1]
       $lastId = $lastItem.Id
    }

    ## The command that we're currently entering on the prompt
    ## will be next in the history. Because of that, we'll
    ## take the last history Id and add one to it.
    $nextCommand = $lastId + 1

    ## Get the current location
    $currentDirectory = get-location

    ## Set the Windows Title to  the current location
    $host.ui.RawUI.WindowTitle = "PS: " + $currentDirectory

    ## And create a prompt that shows the command number,
    ## and current location
    "PS:$nextCommand $currentDirectory `n$($depth_string)>"
 }

Answer 4

看看这是不是你想要的：

function prompt
{
   ## Get the history. Since the history may be either empty,
   ## a single item or an array, the @() syntax ensures
   ## that PowerShell treats it as an array
   $history = @(get-history)


   ## If there are any items in the history, find out the
   ## Id of the final one.
   ## PowerShell defaults the $lastId variable to '0' if this
   ## code doesn't execute.
   if($history.Count -gt 0)
   {
      $lastItem = $history[$history.Count - 1]
      $lastId = $lastItem.Id
   }

   ## The command that we're currently entering on the prompt
   ## will be next in the history. Because of that, we'll
   ## take the last history Id and add one to it.
   $nextCommand = $lastId + 1

   ## Get the current location
   $currentDirectory = get-location

   ## Set the Windows Title to  the current location
   $host.ui.RawUI.WindowTitle = "PS: " + $currentDirectory

   ##pushd info
   $pushdCount = $(get-location -stack).count
   $pushPrompt = ""
   for ($i=0; $i -lt $pushdCount; $i++)
   {
       $pushPrompt += "+"
    }

   ## And create a prompt that shows the command number,
   ## and current location
   "PS:$nextCommand $currentDirectory `n$($pushPrompt)>"
}

Answer 5

这将为您提供 pushd 堆栈上的位置计数：

$(get-location -Stack).count