PowerShell 解析Nginx日志

function Get-Nginxlog {
    [CmdletBinding()]
    param (
        [Parameter()]
        [string]$LogFile,

        [Parameter()]
        [int]$Tail = 100,

        [Parameter()]
        [int]$TotalCount
    )
    $getContentParas = @{
        Path = $LogFile
    }
    if ($TotalCount -gt 0) {
        $getContentParas['TotalCount'] = $TotalCount
    }
    if ($Tail -gt 0) {
        $getContentParas['Tail'] = $Tail
    }

    $LogParserConf = @(
        @{
            Name    = "RemoteAddr"
            Pattern = "(.+) - "
        }
        @{
            Name    = "RemoteUser"
            Pattern = "(.+) "
        }
        @{
            Name    = "LocalTime"
            Pattern = "*\[(.*)\] "
        }
        @{
            Name    = "Request"
            Pattern = "`"(.*?)`" "
        }
        @{
            Name    = "Status"
            Pattern = "(.+?) "
        }
        @{
            Name    = "BodyBytesSent"
            Pattern = "(.+?) "
        }
        @{
            Name    = "Referer"
            Pattern = "`"(.*?)`" "
        }
        @{
            Name    = "UserAgent"
            Pattern = "`"(.*?)`" "
        }
        @{
            Name    = "RequestTime"
            Pattern = "(.+?) "
        }
        @{
            Name    = "UpStreamResponseTime"
            Pattern = "(.+?) "
        }
        @{
            Name    = "UpstreamCacheStatus"
            Pattern = "(.+)"
        }
    )
    Get-Content @getContentParas | ForEach-Object {
        $line = $_

        $pattern = ( $LogParserConf | ForEach-Object { $_.Pattern } ) -join ''
        $line -match $pattern
        $props = [ordered]@{}

        1..($Matches.Count - 1) | ForEach-Object {
            $props[$LogParserConf[$_ - 1].Name] = $Matches[$_]
        }
        [PSCustomObject]$props
    }
}