如何在脚本上使用ping命令？

Question

我经常使用PowerShell进行自动批处理修补。我通常需要获得一个机器列表，ping测试，获取该文件的输出并将其放入PowerShell，移动文件，然后使用PSEXEC执行bat文件。(我不能使用PowerShell远程执行，WinRM在我的世界中被阻塞)。

我找到了一个很好的脚本，用于从pings组中移除用户，如果没有响应，请继续，但如果有，则执行命令并移到下一个。我正在尝试将它用于我自己的用途，使之适合ping、移动文件，如果没有响应，请继续前进。看起来，到现在为止，脚本正在点击、移动，如果没有响应，它就会错误地使用“没有找到的网络路径”。

我的PS脚本如下：

#Install Cisco AnyConnect Core VPN and ISE Posture Installation
#Author: Erik R. Little
#Creation Date: 1 November 2017

#This script will do the following actions:
#1.- Get a computer list from a TXT file.
#2.- Do a ping to every computer on the list, if the computer is offline it will skip it and pass to the next one.
#3.- If the computer answers the ping it will push the AnyConnect installation files to the remote machine.
#4.- Creates a log with all the transactions.

        # Log Time Variables
        $Date = Get-Date -UFormat %b-%m-%Y
        $Hour = (Get-Date).Hour
        $Minuntes = (Get-Date).Minute
        $Log = "C:\support\cisco\Log Files\AnyConnect Install-" + $Date + "-" + $Hour + "-" + $Minuntes + ".log"

        #Creates a log file for this process.
        Start-Transcript -Path $Log  -Force 

        #List of computers to be check
        $ComputerNames = Get-Content "C:\support\cisco\Computers.txt"

        #Ping the computers on the list
        foreach ($ComputerName in $ComputerNames) {
            if (-not (Test-Connection $ComputerName -Quiet -Count 1 -ErrorAction Continue)) {
                #If theres no ping answer pass to the next one
                Write-Output "Computer $ComputerName not reachable (PING) - Skipping this computer..."
            } else {
                #If computer does answer the ping
                Write-Output "Computer $ComputerName is online"
            }
        }

        foreach ($ComputerName in $ComputerNames) {
            Write-Host $ComputerName
            if ((Test-Path "\\$ComputerName\c$\support\cisco") -eq 0) {
                mkdir "\\$ComputerName\c$\support\cisco"
                robocopy /mir "C:\support\cisco" "\\$ComputerName\c$\support\cisco"
            } elseif ((Test-Path "\\$ComputerName\c$\support\cisco") -eq 1) {
                robocopy /mir "C:\support\cisco" "\\$ComputerName\c$\support\cisco"
            }
        }
    }
}
Stop-Transcript

总之:如果没有响应，我希望脚本进行ping，然后继续前进，但是如果有ping，则移动文件，然后移动到下一个。

Answer 1

使用单个foreach。

我还更新了Test-Connection和Test-path的逻辑，以便代码更加简洁。

#Creates a log file for this process.
Start-Transcript -Path $Log  -Force 

#List of computers to be check
$ComputerNames = Get-Content "C:\support\cisco\Computers.txt"

foreach ($ComputerName in $ComputerNames) {
    if (Test-Connection $ComputerName -Quiet -Count 1 -ErrorAction Continue ) {
        Write-Output "Computer $ComputerName is online" 

        if (Test-path "\\$ComputerName\c$\support\cisco") {
            robocopy /mir "C:\support\cisco" "\\$ComputerName\c$\support\cisco"
        }
        else {
            mkdir "\\$ComputerName\c$\support\cisco"
            robocopy /mir "C:\support\cisco" "\\$ComputerName\c$\support\cisco"
        }
    }
    Else {
        Write-Output "Computer $ComputerName not reachable (PING) - Skipping this computer..."
    }
}

Stop-Transcript

编辑：

删除所有重复的代码和值将为您提供更简洁的foreach循环：

foreach ($Computer in $ComputerNames) {
    $source = "C:\support\cisco"
    $destination = "\\$Computer\c$\support\cisco"

    if (Test-Connection $Computer -Quiet -Count 1) {
        Write-Output "Computer $Computer is online" 
        if (-not (Test-path $destination)) {New-Item -Path $destination -ItemType Directory}
        robocopy /mir $source $destination
    }
    else {
        Write-Output "Computer $Computer not reachable (PING) - Skipping this computer..."
    }
}