PowerShell多维数组中的引用元素

Question

我有CSV文件

我的PowerShell脚本尝试在多维数组中存储SourceIP，DestinationIP和Traffic

$source = @((Import-Csv D:\Script\my.csv).SourceIP)
$dest = @((Import-Csv D:\Script\my.csv).DestinationIP)
$t = @((Import-Csv D:\Script\my.csv).Traffic)

$multi = @($source),@($dest),@($t)

当我尝试从$ multi的第一个元素读取时，我希望得到一个SourceIP列表

foreach ($q in $multi){
    write-host $q[0]
    write-host `n
}

但相反，我得到了SourceIP，DestinationIP，Traffic，即

10.153.128.110


10.251.68.80


3.66 GB

如果我尝试

foreach ($q in $multi){
    write-host $q[0][0][0]
    write-host `n

}

我得到了

1


1


3

如何解决问题？

更新

最终目标是

1. 计算总流量
2. 如果SourceIP或目标IP符合特定模式（即10.251.22.x
），则计算流量
3. 获取百分比

更新II

我能够获取导入CSV和仅计算总带宽的代码，但我还需要具有特定模式的SourceIP和DestinationIP的带宽。

$t = @((Import-Csv D:\Script\my.csv).Traffic)

foreach ($k in $t){
    write-host $k

}


foreach ($i in $t){
    $j += ,@($i.split(" "))
}



foreach ($m in $j){
    switch ($m[1]){
        GB {
            $m[0] = [int]($m[0]) * 1000
            $m[1] = 'MB'
        }
        MB {}
        KB {
            $m[0] = [int]($m[0]) / 1000
            $m[1] = 'MB'
        }
    }
    $total_bandwidth += $m[0]
}

write-host Total bandwidth is ("{0:N2}" -f $total_bandwidth) MB 

Answer 1

您不应将对象数组拆分为多个并行属性数组。当物体是完整的时，它很容易操作。

$Scale=@{
     B=1e00
    KB=1e03
    MB=1e06
    GB=1e09
    TB=1e12
}
$TrafficBytes={
    $a=-split$_.Traffic
    [double]$a[0]*$Scale[$a[1]]
}

Import-Csv D:\Script\my.csv|
ForEach-Object $TrafficBytes|
Measure-Object -Sum #total traffic

Import-Csv D:\Script\my.csv|
Where-Object {$_.DestinationIP-like'10.*'}| #condition
ForEach-Object $TrafficBytes|
Measure-Object -Sum #traffic by condition

Answer 2

PetSerAl对转换有一个好主意，但是这是一种方法，需要只迭代一次CSV并给出你的百分比。

$filter = "10.251.22.*"

$Scale=@{
     B=1e00
    KB=1e03
    MB=1e06
    GB=1e09
    TB=1e12
}


$myCsv = Import-Csv D:\Script\my.csv | Select-Object *, @{ Name = "TrafficBytes"; Expression = { $a = -split $_.Traffic; [double] $a[0] * $Scale[$a[1]] } }
$trafficFiltered = $myCsv | Group-Object { $_.SourceIP -like $filter -or $_.DestinationIP -like $filter } | Select-Object @{ Name = "IPFilter"; Expression = { if ($_.Name -eq $true) { $filter } else { "Other" } } }, @{ Name = "TrafficBytes"; Expression = { ($_.Group | Measure-Object -Sum "TrafficBytes").Sum } }
$trafficTotal = $myCsv | Measure-Object -Sum TrafficBytes
$trafficReport = Select-Object IPFilter, TrafficBytes, @{ Name = "Percent"; Expression = { "{0:P}" -f $_.TrafficBytes / $trafficTotal.Sum * 100.0 } }

$trafficReport