Powershell小技巧之通过EventLog查看近期电脑开机和关机时间_PowerShell

机器开机和关机时写在EventLog中的第一条日志和最后一条日志分别为：6005和6006。

									TimeCreated           Id LevelDisplayName Message

									-----------           -- ---------------- -------

									8/18/2014 9:23:04 AM     6005 Information   The Event log service was started.  

									8/15/2014 7:03:48 PM     6006 Information   The Event log service was stopped.

所以根据上面的信息很容易得出机器的开机，关机，在线时间，代码为：

									Function Get-ComputerUptimeHistory { 

									 $q=' 

									<QueryList> 

									 <Query Id="0" Path="System"> 

									  <Select Path="System">*[System[(EventID=6005 or EventID=6006)]]</Select> 

									 </Query> 

									</QueryList>'

									$events = Get-WinEvent -FilterXml $q

									$i=-1 

									while ( $i+1 -lt $events.length ) { 

									 if($i -eq -1) 

									 { 

									 [PSCustomObject]@{ 

									 StartTime = $events[0].TimeCreated; 

									 StopTime = $null ; 

									 UpTime = [datetime]::Now - $events[0].TimeCreated 

									 } 

									 } 

									 else{ 

									 [PSCustomObject]@{ 

									 StartTime = $events[$i+1].TimeCreated; 

									 StopTime = $events[$i].TimeCreated ; 

									 UpTime = $events[$i].TimeCreated - $events[$i+1].TimeCreated 

									 } 

									 } 

									 $i += 2 

									} 

									}

输出为：

									PS> Get-ComputerUptimeHistory | ft -AutoSize

									StartTime       StopTime       UpTime

									---------       --------       ------

									8/18/2014 9:23:04 AM            2.05:00:22.5891685

									8/13/2014 9:30:42 AM 8/15/2014 7:03:48 PM 2.09:33:06

									7/22/2014 12:16:09 PM 8/13/2014 9:29:09 AM 21.21:13:00

									7/22/2014 9:23:08 AM 7/22/2014 11:26:08 AM 02:03:00

									7/17/2014 11:08:57 AM 7/21/2014 6:20:28 PM 4.07:11:31

									7/14/2014 9:35:11 AM 7/17/2014 11:07:25 AM 3.01:32:14

									7/10/2014 3:01:53 PM 7/14/2014 9:21:48 AM 3.18:19:55

									7/8/2014 5:04:02 PM  7/10/2014 2:58:36 PM 1.21:54:34

									6/30/2014 9:17:28 AM 7/8/2014 5:01:24 PM  8.07:43:56

									6/29/2014 10:24:50 AM 6/29/2014 6:04:09 PM 07:39:19

									6/20/2014 9:33:08 AM 6/27/2014 6:18:34 PM 7.08:45:26

									6/16/2014 3:05:45 PM 6/20/2014 9:31:16 AM 3.18:25:31

									6/12/2014 9:40:05 AM 6/16/2014 3:04:02 PM 4.05:23:57

									6/6/2014 2:52:11 PM  6/12/2014 9:37:46 AM 5.18:45:35

									6/5/2014 10:55:20 AM 6/6/2014 2:51:09 PM  1.03:55:49

									6/5/2014 9:19:38 AM  6/5/2014 10:54:04 AM 01:34:26

									6/3/2014 1:33:24 PM  6/4/2014 7:58:58 PM  1.06:25:34

									5/30/2014 10:07:06 AM 6/3/2014 1:31:24 PM  4.03:24:18

									5/29/2014 5:30:33 PM 5/30/2014 9:41:41 AM 16:11:08

									5/29/2014 5:28:57 PM 5/29/2014 5:29:43 PM 00:00:46

									5/29/2014 2:52:58 PM 5/29/2014 5:26:57 PM 02:33:59

									5/29/2014 2:50:31 PM 5/29/2014 2:51:06 PM 00:00:35

									5/27/2014 11:54:43 AM 5/29/2014 2:47:29 PM 2.02:52:46

									5/23/2014 5:31:18 PM 5/26/2014 9:16:33 AM 2.15:45:15

									5/22/2014 6:00:29 PM 5/23/2014 9:16:45 AM 15:16:16

									5/21/2014 4:38:22 PM 5/21/2014 4:40:07 PM 00:01:45

									5/21/2014 9:43:59 AM 5/21/2014 4:36:34 PM 06:52:35

									5/19/2014 11:27:28 AM 5/21/2014 9:42:32 AM 1.22:15:04

									5/19/2014 9:25:56 AM 5/19/2014 9:27:00 AM 00:01:04

									5/15/2014 9:23:15 AM 5/15/2014 9:24:16 AM 00:01:01

									5/15/2014 11:18:45 AM 5/15/2014 11:19:49 AM 00:01:04

Powershell小技巧之通过EventLog查看近期电脑开机和关机时间

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