Question

我的函数为一台或多台计算机查询CimInstance，并将正常运行时间信息存储在对象（$obj）中。如果$obj包含少于5个属性，则所有内容都可以作为单个表显示。当我有5个属性时，它默认为一个列表，如果我将其传递给Format-Table，它会为每台计算机输出一个单独的表。是否有一个原因？我可以做些什么来显示所有五个属性并且有一个连续的表吗？

function Get-LKUptime {
    param(
        [parameter(Mandatory = $true,
             ValueFromPipeline = $True,
             ValueFromPipelineByPropertyName = $True)]
        [string[]]$computername=$env:COMPUTERNAME
    )

    foreach ($computer in $computername) {
        if (Test-Connection $computer -Count 1 -ErrorAction SilentlyContinue) {
            try {
                $os = Get-CimInstance -ErrorAction 'Stop' -ClassName Win32_OperatingSystem -ComputerName $computer
                $status = 'OK'
                $continue = $true
            } catch {
                Write-Warning "Unable to query WMI info for $computer"
                $status = 'ERROR'
            }

            if ($continue) {
                $uptime = ((New-Timespan -Start $os.LastBootUpTime -End $os.LocalDateTime).TotalDays -as [int])
                if ($uptime -gt 30) {
                    $patch = $true
                } else {
                    $patch = $false
                }
            }
        } else {
            Write-Warning "Connection to $computer failed. $computer may be offline"
            $status = 'OFFLINE'
        }

        $properties = [Ordered]@{
            'ComputerName' = $computer;
            'StartTime' = $os.LastBootUpTime;
            'Uptime (Days)' = $uptime;
            'Status' = $status;
            'MightNeedPatched' = $patch
        }

        $obj = New-Object -TypeName PSObject -Property $properties
        $obj | Format-Table
    }
}

4个属性：

5个属性：

Answer 1

请勿在函数中使用Format-* cmdlet，因为它会将原始对象替换为无法进行进一步处理的格式化对象。相反，您应该为您键入自定义格式。

<强> LiamKemp.Format.ps1xml：

<Configuration>
  <ViewDefinitions>
    <View>
      <Name>LiamKemp.UptimeInfo</Name>
      <ViewSelectedBy>
        <TypeName>LiamKemp.UptimeInfo</TypeName>
      </ViewSelectedBy>
      <TableControl>
        <TableRowEntries>
          <TableRowEntry>
            <TableColumnItems>
              <TableColumnItem>
                <PropertyName>ComputerName</PropertyName>
              </TableColumnItem>
              <TableColumnItem>
                <PropertyName>StartTime</PropertyName>
              </TableColumnItem>
              <TableColumnItem>
                <PropertyName>Uptime (Days)</PropertyName>
              </TableColumnItem>
              <TableColumnItem>
                <PropertyName>Status</PropertyName>
              </TableColumnItem>
              <TableColumnItem>
                <PropertyName>MightNeedPatched</PropertyName>
              </TableColumnItem>
            </TableColumnItems>
          </TableRowEntry>
        </TableRowEntries>
      </TableControl>
    </View>
  </ViewDefinitions>
</Configuration>

然后你可以加载你的格式文件：

Update-FormatData .\LiamKemp.Format.ps1xml

或者如果您将功能打包在模块中，则应使用FormatsToProcess键。

您修改函数以将自定义类型名称添加到输出对象：

function Get-LKUptime {
    param(
        [parameter(Mandatory = $true,
             ValueFromPipeline = $True,
             ValueFromPipelineByPropertyName = $True)]
        [string[]]$computername=$env:COMPUTERNAME
    )

    process {
        foreach ($computer in $computername) {
            if (Test-Connection $computer -Count 1 -ErrorAction SilentlyContinue) {
                try {
                    $os = Get-CimInstance -ErrorAction 'Stop' -ClassName Win32_OperatingSystem -ComputerName $computer
                    $status = 'OK'
                    $continue = $true
                } catch {
                    Write-Warning "Unable to query WMI info for $computer"
                    $status = 'ERROR'
                }

                if ($continue) {
                    $uptime = ((New-Timespan -Start $os.LastBootUpTime -End $os.LocalDateTime).TotalDays -as [int])
                    if ($uptime -gt 30) {
                        $patch = $true
                    } else {
                        $patch = $false
                    }
                }
            } else {
                Write-Warning "Connection to $computer failed. $computer may be offline"
                $status = 'OFFLINE'
            }

            [PSCustomObject]@{
                'ComputerName' = $computer;
                'StartTime' = $os.LastBootUpTime;
                'Uptime (Days)' = $uptime;
                'Status' = $status;
                'MightNeedPatched' = $patch
            } | Add-Member -TypeName LiamKemp.UptimeInfo -PassThru

        }
    }
}

现在输出的函数默认格式化为表格。

Format-Table将每个对象输出到单独的表

1 个答案: