Regex 在CSV文件中分割字符串

我在CSV文件中有以下数据

"Name","SourceIP","DestinationIP"
"Sep  1 03:55:57 mmt-5","172.16.48.158","22.22.22.22"
"Sep  1 03:55:57 mmt-5","172.16.48.158","22.22.22.22"
"Sep  1 03:55:57 mmt-5","172.16.48.158","22.22.22.22"
"Sep  1 03:55:57 mmt-5","172.16.48.158","22.22.22.22"

我需要将

Name

列拆分为另外3列<代码>日期，

时间

和

名称

。像下面这样

"Date","Time","Name","SourceIP","DestinationIP"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"

在如何完成上有点迷失。我尝试过用逗号替换第14个字符，但没有成功

$test = import-csv C-sample.csv

$test | foreach-object {
    $_.Name = $_.Name.Replace(14, ",")
}

$test | export-csv D-sample.csv -notype

---

有什么帮助吗？

我将使用

regex

解析字符串，并创建一个新的

PSCustomObject

将其导出回：

$test = import-csv C-sample.csv
$regex = '(?<Date>\w+\s+\d{1,2})\s+(?<Time>\d{2}:\d{2}:\d{2})\s+(?<Name>.*)'

$test | foreach-object {
    $regMatch = [regex]::Match($_.Name, $regex)
    [PSCustomObject]@{
        Date = $regMatch.Groups['Date'].Value
        Time = $regMatch.Groups['Time'].Value
        Name = $regMatch.Groups['Name'].Value
        SourceIP = $_.SourceIP
        DestinationIP = $_.DestinationIP
    }
} | export-csv D-sample.csv -notype

---

编辑：

(?<Date>\w+\s+\d{1,2})\s+(?<Time>\d{2}:\d{2}:\d{2})\s+(?<Name>.*)

"Date","Time","Name","SourceIP","DestinationIP"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"
"Sep  1","03:55:57","mmt-5","172.16.48.158","22.22.22.22"

由于您使用的是PowerShell 2，因此无法在哈希表上使用

PsCustomObject

强制转换，因此请改用此选项：

$test = import-csv C-sample.csv
$regex = '(?<Date>\w+\s+\d{1,2})\s+(?<Time>\d{2}:\d{2}:\d{2})\s+(?<Name>.*)'

$test | foreach-object {
    $regMatch = [regex]::Match($_.Name, $regex)

       $object = New-Object PSObject
       Add-Member -InputObject $object -memberType NoteProperty -Name Date -Value  $regMatch.Groups['Date'].Value
       Add-Member -InputObject $object -memberType NoteProperty -Name Time -Value $regMatch.Groups['Time'].Value
       Add-Member -InputObject $object -memberType NoteProperty -Name Name -Value $regMatch.Groups['Name'].Value
       Add-Member -InputObject $object -memberType NoteProperty -Name SourceIP -Value $_.SourceIP
       Add-Member -InputObject $object -memberType NoteProperty -Name DestinationIP -Value $_.DestinationIP
       $object
} | export-csv D-sample.csv -notype

$test=导入csv C-sample.csv
$regex='（？\w+\s+\d{1,2}）\s+（？\d{2}:\d{2}:\d{2}）\s+（？*）
$test |针对每个对象{
$regMatch=[regex]：:Match（$\名称，$regex）
$object=新对象PSObject
添加成员-InputObject$object-memberType NoteProperty-Name日期-Value$regMatch.Groups['Date'].Value
添加成员-InputObject$object-memberType NoteProperty-Name Time-Value$regMatch.Groups['Time'].Value
添加成员-InputObject$object-memberType NoteProperty-Name-Name-Value$regMatch.Groups['Name'].Value
添加成员-InputObject$object-memberType NoteProperty-Name SourceIP-Value$\源IP
添加成员-InputObject$object-memberType NoteProperty-Name DestinationIP-Value$\ux.DestinationIP
$object
}|导出csv D-sample.csv-notype

谢谢，但我没有得到输出。这就是我得到的<代码>“IsReadOnly”、“IsFixedSize”、“IsSynchronized”、“Keys”、“Values”、“SyncRoot”、“Count”、“False”、“False”、“System.Collections.Hashtable+KeyCollection”、“System.Collections.Hashtable+ValueCollection”、“System.Object”、“5”您在我的脚本中更改了什么吗？如果没有，您使用的是哪个PowerShell版本？那么您可能需要更改pscustomobject的创建方式。让我编辑一下我的答案，效果很好。谢谢你的帮助，不客气。考虑更新你的PopeS壳版本：