我正在尝试将条件格式应用于简单PowerShell函数的输出:
function Get-RamInfo {
$os = Get-WmiObject -Class Win32_OperatingSystem -ComputerName $ComputerName
$cs = Get-WmiObject -Class Win32_ComputerSystem -ComputerName $ComputerName
$memcalc = ($cs.totalphysicalmemory / 1GB) - ($os.freephysicalmemory / 1MB)
$calc = ($os.freephysicalmemory / 1MB) / ($cs.totalphysicalmemory / 1GB) * 100 -as [int]
$props = [ordered]@{'Total RAM (GB)'="{0:N2}" -f ($cs.totalphysicalmemory / 1GB);
'Total RAM In Use (GB)'="{0:N2}" -f ([math]::Round($memcalc,2));
'Total RAM Available (GB)'="{0:N2}" -f ($os.freephysicalmemory / 1MB);
'Total Ram Available (%)'= $calc;
}
$obj = New-Object -TypeName PSObject -Property $props
Write-Output $obj
}
以下是数据的实际处理和应用的逻辑:
$frag3 = Get-RamInfo -ComputerName $computername |
ConvertTo-Html -As Table -Fragment -PreContent '<h2>Memory Info</h2>' |
foreach {
if ($_.'Total Ram Available (%)' -lt 20) {
$_ -replace "<tr>", '<tr class="warning">'
} elseif ($_.'Total Ram Available (%)' -lt 10) {
$_ -replace "<tr>", '<tr class="danger">'
} else{
$_
}
} | Out-String
我只希望if语句在应用逻辑时引用标记为“Total RAM Available(%)”的列。例如。如果标记为“Total RAM Available(%)”的列的值小于20,则执行格式化,如果小于10,则执行不同的格式化,对于其他任何内容,只需正常输出字符串而不进行格式化。
以下是我得到的HTML输出:
<h2>Memory Info</h2>
<table>
<colgroup><col/><col/><col/><col/></colgroup>
<tr class="warning"><th>Total RAM (GB)</th><th>Total RAM In Use (GB)</th><th>Total RAM Available (GB)</th><th>Total Ram Available (%)</th></tr>
<tr class="warning"><td>31.96</td><td>7.44</td><td>24.52</td><td>77</td></tr>
</table>
答案 0 :(得分:0)
当您的if
语句看到数据时,您不再拥有要检查的对象和属性。使用正则表达式和switch
语句来从HTML字符串中提取数值:
$re = '<tr>(<td>[0-9.]+?</td><td>[0-9.]+?</td><td>([0-9.]+?)</td>)'
... | ForEach-Object {
if ($_ -match $re) {
switch ([int]$matches[2]) {
{$_ -lt 20} { $_ -replace $re, '<tr class="warning">$1' }
{$_ -lt 10} { $_ -replace $re, '<tr class="critical">$1' }
default { $_ }
}
}
} | ...
答案 1 :(得分:0)
问题是,一旦将对象转换为HTML,就无法将if / else statemnet用于其属性。我已经编辑了你的脚本了一点。它现在应该工作。
function Get-RamInfo {
$os = Get-WmiObject -Class Win32_OperatingSystem -ComputerName $computername
$cs = Get-WmiObject -Class Win32_ComputerSystem -ComputerName $computername
$memcalc = ($cs.totalphysicalmemory / 1GB) - ($os.freephysicalmemory / 1MB)
$calc = ($os.freephysicalmemory / 1MB) / ($cs.totalphysicalmemory / 1GB) * 100 -as [int]
$props = [ordered]@{'Total RAM (GB)'="{0:N2}" -f ($cs.totalphysicalmemory / 1GB);
'Total RAM In Use (GB)'="{0:N2}" -f ([math]::Round($memcalc,2));
'Total RAM Available (GB)'="{0:N2}" -f ($os.freephysicalmemory / 1MB);
'Total Ram Available (%)'= $calc;
}
$obj = New-Object -TypeName PSObject -Property $props
Write-Output $obj
}
$raminfo = Get-RamInfo -ComputerName $computername |
Select -Property *,@{
name='class';e={
if ($_.'Total Ram Available (%)' -lt 20){'<tr class="warning">'}
elseif ($_.'Total Ram Available (%)' -lt 10){'<tr class="danger">'}
else{'<tr>'}
}
}
$frag3 = $raminfo | Select 'Total RAM (GB)','Total RAM In Use (GB)','Total RAM Available (GB)','Total Ram Available (%)' |
ConvertTo-Html -As Table -Fragment -PreContent '<h2>Memory Info</h2>' |
foreach { $_ -replace '<tr>',$($raminfo.class)
} | Out-String