Question

我有这样的配置文件：

servername = 127.0.0.1
serverport = 44101
servername = 127.0.0.1
serverport = 0
#serverport = 44102

到目前为止，我有一个替换端口号的函数：

# Replace Ports. Syntax:  Oldport=Newport
$WorkerPorts = @{44101=44201; 44102=44202; 44103=44203; 44104=44204}

function replacePort( $file, $Portarray )
{
  Write-Host "Replacing Ports in $file"

  foreach ($p in $Portarray.GetEnumerator())
  {
    Write-Host "  Replace Port $($p.Name) with $($p.Value) ... " -NoNewLine

    (Get-Content $file) | 
    Foreach-Object {$_ -replace $($p.Name), $($p.Value)} | 
    Set-Content $file

    Write-Host "Done"
  }
}

$DividerConf = "$strPath\divider\conf\divider.conf"
replacePort $DividerConf $WorkerPorts

但是，这也会替换已注释掉的端口（以＃开头的行）。该函数应如何仅替换不以＃开头的行？我在考虑类似的事情：

function replacePort( $file, $Portarray )
{
  Write-Host "Replacing Ports in $file"

  foreach ($p in $Portarray.GetEnumerator())
  {
    if ( $content -match "^[^#]*$($p.Name)*" )
    {
      Write-Host "  Replace Port $($p.Name) with $($p.Value) ... " -NoNewLine

      (Get-Content $file) | 
      Foreach-Object {$_ -replace $($p.Name), $($p.Value)} | 
      Set-Content $file

      Write-Host "Done"
    }
  }
}

但我无法弄清楚正确的正则表达式。

修改好的，这就是我要做的：从

更改配置文件中的端口

servername = 127.0.0.1
serverport = 44101
servername = 127.0.0.1
serverport = 0
#serverport = 44102

到

servername = 127.0.0.1
serverport = 44201
servername = 127.0.0.1
serverport = 0
#serverport = 44102

使用上面的PowerShell函数：

# Replace Ports. Syntax:  Oldport=Newport
$WorkerPorts = @{44101=44201; 44102=44202; 44103=44203; 44104=44204}
$DividerConf = "$strPath\divider\conf\divider.conf"

function replacePort( $file, $Portarray )
{
  #Here I need your help :)
}

replacePort $DividerConf $WorkerPorts

@Trevor：到目前为止，我通常会展示我的解决方案。否则我认为我要求你做我的工作;）

Answer 1

与Trevor相同，但在路上进行评论检查。

Foreach ($line in (Get-Content -Path $configFile | Where {$_ -notmatch '^#.*'})) 
{ 
    Foreach ($Port in $PortMapping.Keys) 
    { ... }
}

如果您还想跳过任何空白行，请将Get-Content中的Where更改为

Where { $_ -notmatch '^#.*' -and $_ -notmatch '^\s*$' }

Answer 2

我认为这样的事情会起作用，虽然它当然也不是最有效的选择。基本上，你：

遍历conf文件的每一行
对于文件中的每一行，迭代PortMapping中的每个端口
对于PortMapping中的每个端口，执行替换，然后将该行写入目标文件

<强>代码

$PortMapping       = @{
                      44101 = 44201;
                      44102 = 44202;
                      44103 = 44203;
                      44104 = 44204;
                      };

$ConfigSource      = Get-Content -Path $PSScriptRoot\divider.conf;
$ConfigDestination = $PSScriptRoot\divider2.conf;

foreach ($Line in $ConfigFile) {
    if ($Line -notmatch '\#') {
        foreach ($Port in $PortMapping.Keys) {
            $Line = $Line.Replace($Port, $PortMapping[$Port]);
            Add-Content -Path $ConfigDestination -Value $Line;
        }
    }
}

Powershell搜索和替换以忽略以＃开头的行

2 个答案: