处理远程连接异常
问题描述:
此脚本的预期结果是找出主机列表上的PowerShell版本。我想在远程机器关闭或未启用远程处理时处理异常。但是,似乎没有输入catch
。出现PowerShell的标准红色火焰错误消息。处理远程连接异常
我需要做什么来捕捉异常?
X:\Scripts\PSAutomation> Get-Content .\get-versions.ps1
server_list = @(
'CAPPY'
)
$server_list |
ForEach-Object {
Try {
Invoke-Command -ComputerName $_ {$PSVersionTable.PSVersion}
}
Catch
{
Write-Host "Failed to connect to $_"
}
}
X:\Scripts\PSAutomation> .\get-versions.ps1
[CAPPY] Connecting to remote server CAPPY failed with the following error message : WinRM cannot process the
request. The following error occurred while using Kerberos authentication: Cannot find the computer CAPPY. Verify
that the computer exists on the network and that the name provided is spelled correctly. For more information, see
the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (CAPPY:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : NetworkPathNotFound,PSSessionStateBroken
答
只需设置ErrorAction
为呼叫stop
:
Invoke-Command -ComputerName "sdf" {$PSVersionTable.PSVersion} -ErrorAction Stop
使用'-ErrorAction'使红色消息出现在正常控制台文本颜色。但是,没有任何关于'Write-Host'的信息出现。 – lit
我认为你错了,消息应该以连接失败开始......那是因为你的catch块中的$ _代表错误而不是当前的foreach对象管道变量。您可能必须在尝试之前引入一个变量,例如:'$ current = $ _'并在您的写主机中使用'$ current'而不是'$ _' –
是的。你是对的。我应该看到它。 – lit