如何阻止PowerShell窗口关闭以便我可以看到错误？

Question

我正在创建一个本地PowerShell模块下载程序脚本.模块和脚本保存在网络共享上.使用以下命令调用脚本:

& '\\net\DSFShare\Shared Data\Powershell Modules\Install-MyModuleManager.ps1'

它将脚本复制到标准配置文件模块文件夹,然后从模块文件夹运行Install.ps1. Install.ps1如果需要,自我提升.在高架窗口关闭之前,会弹出一个红色错误但窗口关闭太快,我无法看到错误.如何找出错误是什么？

下载程序脚本使用以下命令调用安装程序:

$installerPath = [IO.Path]::Combine($LocalModulePath, 'Install.ps1')
Write-Host "Installer path: $installerPath"
if (Test-Path $installerPath) {
    Write-Host 'Install.ps1 exists.  Running Install.ps1'
    & $installerPath
}

注意,如果来自PowerShell,我填充$installerPath并使用它调用它& $installerPath,我没有看到错误.

我已经检查了应用程序,系统,Windows PowerShell和安全事件日志,并且没有任何与此相关的错误.

所有脚本都是创建一个事件源.如果要运行它,可以使用:

Remove-EventLog -Source 'My.Module.Manager'

之后,将其删除.这是脚本:

Write-Host "Installing module..."
$eventSource = 'My.Module.Manager'

try {
    $sourceExists = [System.Diagnostics.EventLog]::SourceExists($eventSource)
} catch [Security.SecurityException] {
    Write-Verbose "Caught 'SecurityException': $_.Exception.Message" 
}

if ($sourceExists) {
    Write-Host "...installation complete..." 
} else {

    #region ----- Ensure-ProcessIsElevated -----

    if ($Verbose) {
        $VerbosePreference = "Continue"
    }
    if ($Debug) {
        $DebugPreference = "Continue"
    }

    Write-Debug "Command line is ___$($MyInvocation.Line)___"
    Write-Verbose "Entering script body"

    if ($ScriptPath) {
        Set-Location $ScriptPath
        Write-Verbose "Working directory: $pwd"
    }

    If (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
        Write-Warning "This script must be run with elevated privileges."
        Write-Warning "Restarting as an elevated process."
        Write-Warning "You will be prompted for authorization."
        Write-Warning "You may click 'No' and re-run manually, if you prefer."

        If ((Get-WmiObject Win32_OperatingSystem | select BuildNumber).BuildNumber -ge 6000) {
            Write-Verbose "This is a UAC-enabled system. Elevating ..."
            $CommandLine = "$($MyInvocation.Line.Replace($MyInvocation.InvocationName, $MyInvocation.MyCommand.Definition)) -ScriptPath $pwd"
            Write-Verbose "CommandLine: $CommandLine"

            Start-Process -FilePath PowerShell.exe -Verb Runas -ArgumentList "$CommandLine"

        } else {
            Write-Verbose "The system does not support UAC: an elevated process cannot be started."
            Write-Warning "This script requires administrative privileges. Please re-run with administrative account."
        }

        Break
    }

    Write-Verbose "The script is now running with elevated privileges."

    #endregion ----- Ensure-ProcessIsElevated -----

    New-EventLog -LogName Application -Source $eventSource

    Write-Host "...installation complete..."
}

我正在使用PowerShell 4.0,但它没有标签.

Answer 1

您基本上有3个选项可以阻止PowerShell控制台窗口关闭,我在博客文章中有更详细的描述.

1. 一次性修复:从PowerShell控制台运行脚本,或使用-NoExit开关启动PowerShell进程.例如PowerShell -NoExit "C:\SomeFolder\SomeScript.ps1"
2. 每脚本修复:在脚本文件末尾添加输入提示.例如Read-Host -Prompt "Press Enter to exit"

3. 全局修复:更改注册表项以在脚本完成运行后始终打开PowerShell控制台窗口.这是需要更改的2个注册表项:

   ●打开方式→Windows PowerShell
   右键单击.ps1文件并选择"打开方式"

   注册表项: HKEY_CLASSES_ROOT\Applications\powershell.exe\shell\open\command

   默认值:

   "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "%1"
   

   期望值:

   "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "& \"%1\""
   

   ●使用PowerShell运行
   右键单击.ps1文件并选择"使用PowerShell运行"(根据您安装的Windows操作系统和更新显示).

   注册表项: HKEY_CLASSES_ROOT\Microsoft.PowerShellScript.1\Shell\0\Command

   默认值:

   "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "-Command" "if((Get-ExecutionPolicy ) -ne 'AllSigned') { Set-ExecutionPolicy -Scope Process Bypass }; & '%1'"
   

   期望值:

   "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoExit "-Command" "if((Get-ExecutionPolicy ) -ne 'AllSigned') { Set-ExecutionPolicy -Scope Process Bypass }; & \"%1\""
   

如果您不想手动执行此操作,可以从我的博客下载.reg文件以修改注册表项.

听起来你可能想要使用选项#2.您甚至可以将整个脚本包装在try块中,并且只在发生错误时提示输入,如下所示:

try
{
    # Do your script's stuff
}
catch
{
    Write-Error $_.Exception.ToString()
    Read-Host -Prompt "The above error occurred. Press Enter to exit."
}

Answer 2

这将使powershell窗口等到你按任意键:

pause

更新一

感谢Stein.它是Enter键而不是任何键.

Answer 3

也简单易行:

Start-Sleep 10

Answer 4

最简单的方法是使用-NoExitparam 执行您的特定脚本。

1.按以下键打开运行框：

赢+R

2.然后在输入提示中输入：

PowerShell -NoExit "C:\folder\script.ps1"

并执行。