将错误代码从CMD返回到Powershell [英] Returning an error code from CMD to Powershell

问题描述

我正在使用一个Mssql安装脚本，我想获得一个静默的mssql安装的结果。在我的PowerShell脚本中，我运行这个命令：

I'm working on a Mssql install script and I want to get the results of a silent mssql installation. In my PowerShell script I run this command:

$result = (start cmd "/c D:\SQL2008R2\SQL2008R2\setup.exe /CONFIGURATIONFILE=sqlconfig.ini && exit 0 || exit 1")

失败时返回0，通过时返回1。不幸的是，我没有得到任何输出。任何想法？

Which should return 0 on fail and 1 on pass. Unfortunately, I don't get any output back. Any ideas?

推荐答案

Start-Process 语法简洁的调用操作符& 。

An alternative to Start-Process is the more syntactically terse call operator &.

& cmd.exe /c 'ping.exe doesnotexist && exit 0 || exit 1'

退出代码将包含在内置变量 $ LASTEXITCODE 因此：

The exit code will be contained in the built-in variable $LASTEXITCODE so:

Write-Host $LASTEXITCODE

这将包含程序运行的退出代码，所以你不需要运行CMD.exe你可以做： p>

This will contain the exit code of the program run so you don't necessary have to run it with CMD.exe you could just do:

& ping.exe doesnotexist ; Write-Host $LASTEXITCODE

应用于您的命令行程序：

Applied to your command line program:

& cmd.exe /c 'D:\SQL2008R2\SQL2008R2\setup.exe /CONFIGURATIONFILE=sqlconfig.ini && exit 0 || exit 1'

或只是：

& D:\SQL2008R2\SQL2008R2\setup.exe /CONFIGURATIONFILE=sqlconfig.ini

对于成功，情况 $ LASTEXITCODE 应为0，否则为非零（如果外部程序正确写入）。

In both cases $LASTEXITCODE should be 0 for success, non-zero otherwise (if the external program was written correctly).

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