2
我最近完成了一個腳本，可以對列表中的每臺計算機/工作站執行ping操作，並以很好的格式輸出。如何使用多線程PowerShell Ping腳本
有數千臺計算機可以ping下一個列表，所以它需要一段時間才能正常運行。我怎麼能夠多線程化這個工作，以便在合理的時間內完成工作？
A
回答
2
你可以產卵multiple jobs 或者你可以使用一個工作流程和Foreach -parallel loop。
0
我發現並使用此腳本作爲類似功能的基線Ping-IPRange。
我已經從原來的它進行了修改，並將其包含在下面。
如果這是你正在使用的，你可以很容易地適應這個主機名列表。
平IPRange.ps1
function Ping-IPRange
{
<#
.SYNOPSIS
Sends ICMP echo request packets to a range of IPv4 addresses between two given addresses.
.DESCRIPTION
This function lets you sends ICMP echo request packets ("pings") to
a range of IPv4 addresses using an asynchronous method.
Therefore this technique is very fast but comes with a warning.
Ping sweeping a large subnet or network with many switches may result in
a peak of broadcast traffic.
Use the -Interval parameter to adjust the time between each ping request.
For example, an interval of 60 milliseconds is suitable for wireless networks.
The RawOutput parameter switches the output to an unformatted
[System.Net.NetworkInformation.PingReply[]].
.INPUTS
None
You cannot pipe input to this function.
.OUTPUTS
The function only returns output from successful pings.
Type: System.Net.NetworkInformation.PingReply
The RawOutput parameter switches the output to an unformatted
[System.Net.NetworkInformation.PingReply[]].
.NOTES
Author : G.A.F.F. Jakobs
Created : August 30, 2014
Version : 6
Revision History: Kory Gill, 2016/01/09
formatting
added better error handling
close progress indicator when complete
.EXAMPLE
Ping-IPRange -StartAddress 192.168.1.1 -EndAddress 192.168.1.254 -Interval 20
IPAddress Bytes Ttl ResponseTime
--------- ----- --- ------------
192.168.1.41 32 64 371
192.168.1.57 32 128 0
192.168.1.64 32 128 1
192.168.1.63 32 64 88
192.168.1.254 32 64 0
In this example all the ip addresses between 192.168.1.1 and 192.168.1.254 are pinged using
a 20 millisecond interval between each request.
All the addresses that reply the ping request are listed.
.LINK
http://gallery.technet.microsoft.com/Fast-asynchronous-ping-IP-d0a5cf0e
#>
[CmdletBinding(ConfirmImpact='Low')]
Param(
[parameter(Mandatory = $true, Position = 0)]
[System.Net.IPAddress]$StartAddress,
[parameter(Mandatory = $true, Position = 1)]
[System.Net.IPAddress]$EndAddress,
[int]$Interval = 30,
[Switch]$RawOutput = $false
)
$timeout = 2000
function New-Range ($start, $end) {
[byte[]]$BySt = $start.GetAddressBytes()
[Array]::Reverse($BySt)
[byte[]]$ByEn = $end.GetAddressBytes()
[Array]::Reverse($ByEn)
$i1 = [System.BitConverter]::ToUInt32($BySt,0)
$i2 = [System.BitConverter]::ToUInt32($ByEn,0)
for ($x = $i1;$x -le $i2;$x++)
{
$ip = ([System.Net.IPAddress]$x).GetAddressBytes()
[Array]::Reverse($ip)
[System.Net.IPAddress]::Parse($($ip -join '.'))
}
}
$ipRange = New-Range $StartAddress $EndAddress
$IpTotal = $ipRange.Count
Get-Event -SourceIdentifier "ID-Ping*" | Remove-Event
Get-EventSubscriber -SourceIdentifier "ID-Ping*" | Unregister-Event
$ipRange | ForEach-Object {
[string]$VarName = "Ping_" + $_.Address
New-Variable -Name $VarName -Value (New-Object System.Net.NetworkInformation.Ping)
Register-ObjectEvent -InputObject (Get-Variable $VarName -ValueOnly) -EventName PingCompleted -SourceIdentifier "ID-$VarName"
(Get-Variable $VarName -ValueOnly).SendAsync($_,$timeout,$VarName)
Remove-Variable $VarName
try
{
$pending = (Get-Event -SourceIdentifier "ID-Ping*").Count
}
catch [System.InvalidOperationException]
{
$pending = 0
}
$index = [array]::indexof($ipRange,$_)
Write-Progress -Activity "Sending ping to" -Id 1 -status $_.IPAddressToString -PercentComplete (($index/$IpTotal) * 100)
$percentComplete = ($($index - $pending), 0 | Measure-Object -Maximum).Maximum
Write-Progress -Activity "ICMP requests pending" -Id 2 -ParentId 1 -Status ($index - $pending) -PercentComplete ($percentComplete/$IpTotal * 100)
Start-Sleep -Milliseconds $Interval
}
Write-Progress -Activity "Done sending ping requests" -Id 1 -Status 'Waiting' -PercentComplete 100
while ($pending -lt $IpTotal) {
Wait-Event -SourceIdentifier "ID-Ping*" | Out-Null
Start-Sleep -Milliseconds 10
try
{
$pending = (Get-Event -SourceIdentifier "ID-Ping*").Count
}
catch [System.InvalidOperationException]
{
$pending = 0
}
$percentComplete = ($($IpTotal - $pending), 0 | Measure-Object -Maximum).Maximum
Write-Progress -Activity "ICMP requests pending" -Id 2 -ParentId 1 -Status ($IpTotal - $pending) -PercentComplete ($percentComplete/$IpTotal * 100)
}
Write-Progress -Completed -Id 2 -ParentId 1 -Activity "Completed"
Write-Progress -Completed -Id 1 -Activity "Completed"
$Reply = @()
if ($RawOutput)
{
Get-Event -SourceIdentifier "ID-Ping*" | ForEach {
if ($_.SourceEventArgs.Reply.Status -eq "Success")
{
$Reply += $_.SourceEventArgs.Reply
}
Unregister-Event $_.SourceIdentifier
Remove-Event $_.SourceIdentifier
}
}
else
{
Get-Event -SourceIdentifier "ID-Ping*" | ForEach-Object {
if ($_.SourceEventArgs.Reply.Status -eq "Success")
{
$pinger = @{
IPAddress = $_.SourceEventArgs.Reply.Address
Bytes = $_.SourceEventArgs.Reply.Buffer.Length
Ttl = $_.SourceEventArgs.Reply.Options.Ttl
ResponseTime = $_.SourceEventArgs.Reply.RoundtripTime
}
$Reply += New-Object PSObject -Property $pinger
}
Unregister-Event $_.SourceIdentifier
Remove-Event $_.SourceIdentifier
}
}
if ($Reply.Count -eq 0)
{
Write-Verbose "Ping-IPRange : No IP address responded" -Verbose
}
return $Reply
}
1
workflow Ping
{
param($computers)
foreach -parallel ($computer in $computers)
{
$status = Test-Connection -ComputerName $computer -Count 1 -Quiet
if (!$status)
{ Write-Output "Could not ping $computer" }
}
}
$computers = @(
"wd1600023",
"sleipnir"
)
Ping $computers
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