Question

我有以下的Powershell脚本，我只拉出前两列，因为无法正确分离其他列。我想强制我的导入总是分成7列，每个数据集都包含在内。

My Current PS Script：

$serverNames = Get-Content "C$\app\test\ServerList2.txt"
$ServerList = @()

foreach ($serverName in $serverNames) {
    $ServerList += Import-Csv "C$\app\test\$serverName.txt" -Header "Extension","Server IP","TRUE","NIC","Comments","PCName" |
    Select-Object *, @{n='Server Name';e={$serverName}}
}

$ServerList

我的两个示例文件：样本1：

; sample entries
; StationID, MAC Address,      Recording Enabled
; AddressType = MAC
; 5201,       00.0d.29.0b.cd.34, TRUE
; 5202,       00.0D.29.0B.D9.30, TRUE


; StationID, IP Address,      Recording Enabled
AddressType = IP4

10000, 192.168.1.137, TRUE, 1         ; My Comments     PCName
10001, 192.168.1.28, TRUE          ;My Comments
10003, 192.168.1.63, TRUE,2          ; My Comments     PCName

样本2：

; sample entries
; StationID, MAC Address,      Recording Enabled
; AddressType = MAC
; 5201,       00.0d.29.0b.cd.34, TRUE
; 5202,       00.0D.29.0B.D9.30, TRUE


; StationID, IP Address,      Recording Enabled
AddressType = IP4

10010, 192.168.1.29, TRUE,1         ; My Comments 4
10040, 192.168.1.7, TRUE          ; My Comments 5     PCName
10100, 192.168.1.14, TRUE,2          ; My Comments 6    PCName

我关注的数据只是以数字开头的行。正如您所知，并非所有行都具有相同的分隔符，这增加了复杂性。我试图让输出看起来如下所示。

Extension   IP Address      TRUE    NIC   Comments        PC Name   Server Name
10000       192.168.1.137   TRUE    1     My Comments 1   PCName1   Server1
10001       192.168.1.28    TRUE          My Comments 2             Server1
10003       192.168.1.63    TRUE    2     My Comments 3   PCName3   Server1
10010       192.168.1.29    TRUE    1     My Comments 4             Server2
10040       192.168.1.7     TRUE          My Comments 5   PCName5   Server2
10100       192.168.1.14    TRUE    2     My Comments 6   PCName6   Server2

Answer 1

Import-CSV（以及一般的CSV格式）使用单个分隔符。如果您的文件有多个分隔符和“可选”字段（不是空值，但缺少值），那么它不是CSV。最好的方法是使用正则表达式创建自定义解析器。实施例

$regex = '^(?<Extension>.+?),\s?(?<IPAddress>.+?),\s+(?<TRUE>\w+?)(?:,\s?(?<NIC>\d))?\s+?;\s?(?<Comments>.+?)(?:\s{2,}(?<PCName>\w+))?$'

$serverNames = Get-Content "C$\app\test\ServerList2.txt"
$ServerList = @()

foreach ($serverName in $serverNames) {
    Get-Content -Path "C$\app\test\$serverName.txt" | ForEach-Object {
        if($_ -match $regex) {
            $ServerList += New-Object -TypeName psobject -Property $Matches |
            Select-Object -Property "Extension","IPAddress","TRUE","NIC","Comments","PCName", @{n='Server Name';e={$serverName}}
        }
    }
}

$ServerList

正则表达式的演示和解释：Regex101

如何基于多个定义的分隔符进行拆分

1 个答案: