Question

我需要一些有关Powershell脚本的帮助，但我不知道该怎么做。

一个非常基本的问题是，如果我有2个配置文件，即1.默认值和2.特定的更新值。如何“比较”两个设置文件，以及如何创建第三个配置文件。

让我们说说，配置一个（default_config.txt）：

## general settings ##
user = 1
ringtonetype = 1
ringtonevolume = 10

## user settings
volumespeaker = 10
volumeheadset = 9

## ldap settings
address = 192.168.0.244
subnet = 255.255.255.0
user = admin
password = admin

配置2的具体值（config_new_site.txt）：

## general settings ##
ringtonetype = 5
ringtonevolume = 15

## user settings
volumespeaker = 5
volumeheadset = 5

如何创建具有默认值并从“新站点”更新的“ config_new_site_updated.txt”？

它应该像这样：

## general settings ##
user = 1
ringtonetype = 5
ringtonevolume = 15

## user settings
volumespeaker = 5
volumeheadset = 5

## ldap settings
address = 192.168.0.244
subnet = 255.255.255.0
user = admin
password = admin

任何建议都将受到高度赞赏，并在此先感谢您！

Answer 1

$OldConfig = @(Get-Content "C:\test\default_config.txt")
$NewConfig = @(Get-Content "C:\test\config_new_site.txt")


for ($i = 0; $i -lt $OldConfig.Count; $i++)
{ 
    # Skipping NewLines, Comments/Headlines and Invalid Lines
    if($OldConfig[$i] -eq "" -or $OldConfig[$i].Substring(0,1) -eq "#" -or (!$OldConfig[$i] -like "*=*"))
    {
        continue
    }

    #Split at '=' and Remove Spaces to get clean Property & Value
    $OldProperty = $OldConfig[$i].Split('=')[0].TrimEnd().TrimStart()
    $OldValue = $OldConfig[$i].Split('=')[1].TrimEnd().TrimStart()

    $NewValue = $null

    # Loop throuh new Config and Compare Property
    foreach ($NewLine in $NewConfig)
    {
        # Skipping NewLines, Comments/Headlines and Invalid Lines
        if($NewLine -eq "" -or $NewLine.Substring(0,1) -eq "#" -or (!$NewLine -like "*=*"))
        {
            continue
        }

        #Split at '=' and Remove Spaces to get clean Property
        $NewProperty = $NewLine.Split('=')[0].TrimEnd().TrimStart()  

        # Compare Property
        if($OldProperty -eq $NewProperty)
        {
            # Set NewVal if Propertys matched
            $NewValue = $NewLine.Split('=')[1].TrimEnd().TrimStart()
            break
        }     
    }

    # Update Property with new Value if Value has changed
    if($NewValue -ne $null -and $NewValue -ne $OldValue)
    {
        $OldConfig[$i] = "$OldProperty = $NewValue"
        Write-Host "Set `"$OldProperty`" from `"$OldValue`" to `"$NewValue`""          
    }       
}

$OldConfig | Out-File "C:\test\config_new_site_updated.txt" -Force

比较配置文件并更新现有值

1 个答案: