Question

我正在执行PowerShell脚本，该脚本在远程服务器上执行批处理脚本。但是在PowerShell脚本中，我无法处理批处理脚本中可能发生的任何故障。批处理脚本最后有exit %ERROR_CODE%。

请告诉我如何在调用PowerShell脚本中捕获批处理脚本中发生的任何错误。

我的PowerShell脚本如下：

$DBServer = $args[0]
$CustName = $args[1]
$FullBackupPath = $args[2]

$command = "cmd.exe /c DbBackupBatch.cmd " + $FullBackupPath + " " + $CustName

$script = 'Invoke-Expression -Command "' + $command + '"'
$scriptblock = [scriptblock]::Create($script)

try {
    Invoke-Command -ComputerName $DBServer -Authentication NegotiateWithImplicitCredential -ErrorAction Stop -ScriptBlock $scriptblock
    exit 0
} catch {
    $message = $_.Exception.Message

    Write-Host $_.Exception.Message 

    # While executing a Java programs, we get message as below -
    # Picked up JAVA_TOOL_OPTIONS: -Xms512m -Xmx512m
    # This message is treated as error message by PowerShell, though it is not an error
    if (($message.Length -lt 50) -and ($message.Contains('Picked up JAVA_TOOL_OPTIONS:'))) {
        exit 0
    } else {
        Write-Host $_.Exception.Message 
        exit 1
    }
}

Answer 1

给它一个旋转：

$remoteReturnValue = Invoke-Command -ComputerName "DV1IMPSSDB01" -Authentication NegotiateWithImplicitCredential -ScriptBlock {
    $cmd = Start-Process "cmd.exe" -Wait -PassThru -ArgumentList "/c timeout 5"
    $cmdExitCode = $cmd.ExitCode

    if ($cmdExitCode -eq 0) {
        return "Success"
    }
    else {
        return "Wuh-oh, we have had a problem... exit code: $cmdExitCode"
    }
}

Write-Host $remoteReturnValue -ForegroundColor Magenta

Answer 2

无论您在PowerShell中尝试做什么，Invoke-Expression实际上总是错误的做法。 PowerShell可以单独执行批处理文件，因此您可以直接运行DbBackupBatch.cmd，而无需Invoke-Expression甚至不cmd /c。

尝试这样的事情：

$DBServer = $args[0]
$CustName = $args[1]
$FullBackupPath = $args[2]

try {
    Invoke-Command -ComputerName $DBServer -ScriptBlock {
        $output = & DbBackupBatch.cmd $args[0] $args[1] 2>&1
        if ($LastExitCode -ne 0) { throw $output }
    } -ArgumentList $FullBackupPath, $CustName -Authentication NegotiateWithImplicitCredential
} catch {
    Write-Host $_.Exception.Message 
    exit 1
}

exit 0

PowerShell脚本在远程服务器上执行批处理脚本

2 个答案: