powershell - 检查命令是否运行成功

Question

我尝试将以下内容包含在 if 语句中，以便在成功时可以执行另一个命令:

Get-WmiObject -Class Win32_Share -ComputerName $Server.name -Credential $credentials -Filter "Description='Default share'" | Foreach-Object {
        $Localdrives += $_.Path

但我不知道该怎么做。我什至尝试创建一个函数，但我不知道如何检查该函数是否已成功完成。

Answer 1

尝试使用 $? 自动变量:

$share = Get-WmiObject -Class Win32_Share -ComputerName $Server.name -Credential $credentials -Filter "Description='Default share'"

if($?)
{
   "command succeeded"
   $share | Foreach-Object {...}
}
else
{
   "command failed"
}

来自about_Automatic_Variables :

$?
   Contains the execution status of the last command. 
   It contains True if the last command succeeded and False if it failed.
...

$LastExitCode
   Contains the exit code of the last native program or PowerShell script that ran.