在文件內容中動態修改DateTime

Question

我試圖用當前時間修改文件中日誌記錄的日期和時間，並將其保存在同一個文件中，但不知何故，我無法更新它們。 DateTime正在動態變化，我想要按順序更改每個記錄的DateTime。

正如你看到的下面，日期時間用秒遞增一起毫秒變化 - 有什麼辦法，我可以修改根據當前系統時間遞增的文件嗎？我嘗試了以下方法 - 我知道這是不正確的，但試着看看是否有效。任何意見或建議要解決，請幫助。

環境：Windows 2008 & Windows 2003的

$PATH = "D:\Log\focusServer\focusServer.txt" 
$content = "2015-10-27 15:50:21,900 [ListenerThread0] WARN focus.Core.Server.States.InvalidIPRangeState - Begin 'InvalidIPRangeState' for application '|did:N/A^ep:10.160.210.222:40534^iprg:N/A|' 
2015-10-27 15:50:21,900 [ListenerThread0] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.210.222:40534^iprg:N/A|: Connection Established 
2015-10-27 15:50:49,993 [12 ] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.213.172:39158^iprg:N/A|: Connection Closed. Reason: Socket closed by remote party (0-byte packet received) 
2015-10-27 15:50:49,994 [ListenerThread0] WARN focus.Core.Server.States.InvalidIPRangeState - Begin 'InvalidIPRangeState' for application '|did:N/A^ep:01.60.213.172:39158^iprg:N/A|' 
2015-10-27 15:50:49,994 [ListenerThread0] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.213.172:39158^iprg:N/A|: Connection Established" 

$toReplace = "2015-10-27" 
$updateContent = [DateTime]::Now.Add(0).AddHours(0).AddMinutes(0).addseconds(0).toString() 
$convertDate = ([datetime]::ParseExact($updateContent,"dd/MM/yyyy HH:mm:ss",$null)) 
$convertDate.year.toString() + "-" + $convertDate.month.toString() +"-"+ 
$convertDate.day.toString() + " " + $convertDate.Hour.toString() + ":" +$convertDate.Minute.toString() + ":" + $convertDate.Second.toString() 

Add-Content -Value $content -Path $PATH 

(Get-Content $PATH) | 
Foreach-Object {$_ -replace $toReplace,$updateContent} | 
Out-File $PATH 

Answer 1

好吧，你應該能夠改變，你需要在此基礎上的。我們所做的是編輯文件中的每一行。解析每行的數據....然後操縱日期並將其寫回相同的文件。

在我的示例中，我們將日期移至今天，同時保持原始時間戳的相同時間。

# file formatting. Note the space on the end is on purpose. 
$formatting = "yyyy-MM-dd HH:mm:ss,fff " 
$currentDate = Get-Date 

(Get-Content $PATH) | Foreach-Object { 
    # Split to get the date on the first occurrence of [. 
    $parsed = $_.split("[",2) 
    # Convert to datetime 
    $date = [datetime]::ParseExact($parsed[0], $formatting, $null) 
    # Get the new time by adding the current date and the time from the parsed data 
    $manipulated = $currentDate.Date + $date.TimeOfDay 
    # Convert new time to the old format from file and append remainder of line from file. 
    $manipulated.ToString($formatting) + "[" + $parsed[1] 
} | Set-Content $PATH 

採樣數據輸出基於11月1日，2015年（今天）

2015-11-01 15:50:21,900 [ListenerThread0] WARN focus.Core.Server.States.InvalidIPRangeState - Begin 'InvalidIPRangeState' for application '|did:N/A^ep:10.160.210.222:40534^iprg:N/A|' 
2015-11-01 15:50:21,900 [ListenerThread0] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.210.222:40534^iprg:N/A|: Connection Established 
2015-11-01 15:50:49,993 [12 ] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.213.172:39158^iprg:N/A|: Connection Closed. Reason: Socket closed by remote party (0-byte packet received) 
2015-11-01 15:50:49,994 [ListenerThread0] WARN focus.Core.Server.States.InvalidIPRangeState - Begin 'InvalidIPRangeState' for application '|did:N/A^ep:01.60.213.172:39158^iprg:N/A|' 
2015-11-01 15:50:49,994 [ListenerThread0] INFO focus.Core.Server.Connection.DcmpConnection - |did:N/A^ep:01.60.213.172:39158^iprg:N/A|: Connection Established 

我看到你正在使用正則表達式。你可能有你的替代字符串中的控制字符有問題。我的方法不太容易出錯，併爲日期操作打開了更簡單的方法。