blocks|key|952773|text|是啊。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|952774|Measure-Command+{+.\do_something.ps1+}|code-block|syntax|javascript|952775|请注意，Measure-Command的一个小缺点是看不到stdout输出。|offset|length|style|CODE|952776|更新，感谢@JasonMArcher，你可以通过管道将命令输出传递给某个写入主机的命令小程序，例如Out-Default，这样它就变成了：|952777|Measure-Command+{+.\do_something.ps1+%7C+Out-Default+}|952778|查看输出的另一种方法是使用.NET+Stopwatch类，如下所示：|952779|$sw+=+[Diagnostics.Stopwatch]::StartNew()
.\do_something.ps1
$sw.Stop()
$sw.Elapsed|952780|entityMap^0|0|0|4|F|T|6|0|1D|B|0|0|I|9|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@$I|14|J|15|K|L]]|9|@]|A|$]]|$1|O|3|P|5|D|7|16|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|17|8|@$I|18|J|19|K|L]]|9|@]|A|$]]|$1|S|3|T|5|D|7|1A|8|@]|9|@]|A|$E|F]]|$1|U|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|V|$]]

Yup.

<pre><code>Measure-Command { .\do_something.ps1 }
</code></pre>

Note that one minor downside of <code>Measure-Command</code> is that you see no <code>stdout</code> output. 

[Update, thanks to @JasonMArcher] You can fix that by piping the command output to some commandlet that writes to the host, e.g. <code>Out-Default</code> so it becomes:

<pre><code>Measure-Command { .\do_something.ps1 | Out-Default }
</code></pre>

Another way to see the output would be to use the .NET <code>Stopwatch</code> class like this:

<pre><code>$sw = [Diagnostics.Stopwatch]::StartNew()
.\do_something.ps1
$sw.Stop()
$sw.Elapsed
</code></pre>

blocks|key|952855|text|您还可以从历史记录中获取最后一个命令，并从它的StartExecutionTime中减去它的EndExecutionTime。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|952856|.\do_something.ps1++
$command+=+Get-History+-Count+1++
$command.EndExecutionTime+-+$command.StartExecutionTime|code-block|syntax|javascript|952857|entityMap^0|N|I|1A|G|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You can also get the last command from history and subtract its <code>EndExecutionTime</code> from its <code>StartExecutionTime</code>.

<pre><code>.\do_something.ps1 
$command = Get-History -Count 1 
$command.EndExecutionTime - $command.StartExecutionTime
</code></pre>

blocks|key|953038|text|使用Measure-Command|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|953039|示例|953040|Measure-Command+{+<your+command+here>+%7C+Out-Host+}|code-block|syntax|javascript|953041|连接到Out-Host的管道允许您查看命令的输出，否则将由Measure-Command使用。|953042|entityMap^0|2|F|0|0|0|3|8|T|F|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|P|$]]

Use <code>Measure-Command</code>

Example

<pre class="lang-sh prettyprint-override"><code>Measure-Command { &lt;your command here&gt; | Out-Host }
</code></pre>

The pipe to <code>Out-Host</code> allows you to see the output of the command, which is
otherwise consumed by <code>Measure-Command</code>.

blocks|key|1167124|text|简单示例|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1167125|function+time($block)+{
++++$sw+=+[Diagnostics.Stopwatch]::StartNew()
++++&$block
++++$sw.Stop()
++++$sw.Elapsed
}|code-block|syntax|javascript|1167126|然后可以用作|1167127|time+{+.\some_command+}|1167128|您可能需要调整输出|1167129|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Simples

<pre><code>function time($block) {
 $sw = [Diagnostics.Stopwatch]::StartNew()
 &amp;$block
 $sw.Stop()
 $sw.Elapsed
}
</code></pre>

then can use as

<pre><code>time { .\some_command }
</code></pre>

You may want to tweak the output

blocks|key|1167315|text|下面是我编写的一个函数，它的工作方式类似于Unix的time命令：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1167316|function+time+{
++++Param(
++++++++[Parameter(Mandatory=$true)]
++++++++[string]$command,
++++++++[switch]$quiet+=+$false
++++)
++++$start+=+Get-Date
++++try+{
++++++++if+(+-not+$quiet+)+{
++++++++++++iex+$command+%7C+Write-Host
++++++++}+else+{
++++++++++++iex+$command+>+$null
++++++++}
++++}+finally+{
++++++++$(Get-Date)+-+$start
++++}
}|code-block|syntax|javascript|1167317|来源：https://gist.github.com/bender-the-greatest/741f696d965ed9728dc6287bdd336874|1167318|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/bender-the-greatest/741f696d965ed9728dc6287bdd336874^0|Q|4|0|0|3|24|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|M|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Here's a function I wrote which works similarly to the Unix <code>time</code> command:

<pre><code>function time {
 Param(
 [Parameter(Mandatory=$true)]
 [string]$command,
 [switch]$quiet = $false
 )
 $start = Get-Date
 try {
 if ( -not $quiet ) {
 iex $command | Write-Host
 } else {
 iex $command &gt; $null
 }
 } finally {
 $(Get-Date) - $start
 }
}
</code></pre>

Source: <a href="https://gist.github.com/bender-the-greatest/741f696d965ed9728dc6287bdd336874" rel="noreferrer">https://gist.github.com/bender-the-greatest/741f696d965ed9728dc6287bdd336874</a>

blocks|key|952974|text|使用秒表和格式化已用时间：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|952975|Function+FormatElapsedTime($ts)+
{
++++$elapsedTime+=+""

++++if+(+$ts.Minutes+-gt+0+)
++++{
++++++++$elapsedTime+=+[string]::Format(+"{0:00}+min.+{1:00}.{2:00}+sec.",+$ts.Minutes,+$ts.Seconds,+$ts.Milliseconds+/+10+);
++++}
++++else
++++{
++++++++$elapsedTime+=+[string]::Format(+"{0:00}.{1:00}+sec.",+$ts.Seconds,+$ts.Milliseconds+/+10+);
++++}

++++if+($ts.Hours+-eq+0+-and+$ts.Minutes+-eq+0+-and+$ts.Seconds+-eq+0)
++++{
++++++++$elapsedTime+=+[string]::Format("{0:00}+ms.",+$ts.Milliseconds);
++++}

++++if+($ts.Milliseconds+-eq+0)
++++{
++++++++$elapsedTime+=+[string]::Format("{0}+ms",+$ts.TotalMilliseconds);
++++}

++++return+$elapsedTime
}

Function+StepTimeBlock($step,+$block)+
{
++++Write-Host+"`r`n*****"
++++Write-Host+$step
++++Write-Host+"`r`n*****"

++++$sw+=+[Diagnostics.Stopwatch]::StartNew()
++++&$block
++++$sw.Stop()
++++$time+=+$sw.Elapsed

++++$formatTime+=+FormatElapsedTime+$time
++++Write-Host+"`r`n`t=====>+$step+took+$formatTime"
}|code-block|syntax|javascript|952976|使用示例|952977|StepTimeBlock+("Publish+{0}+Reports"+-f+$Script:ArrayReportsList.Count)++{+
++++$Script:ArrayReportsList+%7C+%25+{+Publish-Report+$WebServiceSSRSRDL+$_+$CarpetaReports+$CarpetaDataSources+$Script:datasourceReport+};
}

StepTimeBlock+("My+Process")++{++.\do_something.ps1+}|952978|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Using Stopwatch and formatting elapsed time:

<pre><code>Function FormatElapsedTime($ts) 
{
 $elapsedTime = ""

 if ( $ts.Minutes -gt 0 )
 {
 $elapsedTime = [string]::Format( "{0:00} min. {1:00}.{2:00} sec.", $ts.Minutes, $ts.Seconds, $ts.Milliseconds / 10 );
 }
 else
 {
 $elapsedTime = [string]::Format( "{0:00}.{1:00} sec.", $ts.Seconds, $ts.Milliseconds / 10 );
 }

 if ($ts.Hours -eq 0 -and $ts.Minutes -eq 0 -and $ts.Seconds -eq 0)
 {
 $elapsedTime = [string]::Format("{0:00} ms.", $ts.Milliseconds);
 }

 if ($ts.Milliseconds -eq 0)
 {
 $elapsedTime = [string]::Format("{0} ms", $ts.TotalMilliseconds);
 }

 return $elapsedTime
}

Function StepTimeBlock($step, $block) 
{
 Write-Host "`r`n*****"
 Write-Host $step
 Write-Host "`r`n*****"

 $sw = [Diagnostics.Stopwatch]::StartNew()
 &amp;$block
 $sw.Stop()
 $time = $sw.Elapsed

 $formatTime = FormatElapsedTime $time
 Write-Host "`r`n`t=====&gt; $step took $formatTime"
}
</code></pre>

Usage Samples

<pre><code>StepTimeBlock ("Publish {0} Reports" -f $Script:ArrayReportsList.Count) { 
 $Script:ArrayReportsList | % { Publish-Report $WebServiceSSRSRDL $_ $CarpetaReports $CarpetaDataSources $Script:datasourceReport };
}

StepTimeBlock ("My Process") { .\do_something.ps1 }
</code></pre>

blocks|key|1167377|text|到目前为止，所有的答案都没有达到提问者(和我)通过简单地在命令行的开头添加"time“来计算命令时间的愿望。相反，它们都需要将命令括在方括号({})中以生成块。下面是一个简短的函数，它的工作方式更像Unix上的time：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1167378|Function+time()+{
++$command+=+$args+-join+'+'
++Measure-Command+{+Invoke-Expression+$command+%7C+Out-Default+}
}|code-block|syntax|javascript|1167379|entityMap^0|1Z|2|2X|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

All the answers so far fall short of the questioner's (and my) desire to time a command by simply adding &quot;time &quot; to the start of the command line. Instead, they all require wrapping the command in brackets (<code>{}</code>) to make a block. Here is a short function that works more like <code>time</code> on Unix:
<pre><code>Function time() {
 $command = $args -join ' '
 Measure-Command { Invoke-Expression $command | Out-Default }
}
</code></pre>

blocks|key|1167426|text|一种更受PowerShell启发的方式来访问您关心的属性的值：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1167427|$myCommand+=+.\do_something.ps1
Measure-Command+{+Invoke-Expression+$myCommand+}+%7C+Select+-ExpandProperty+Milliseconds|code-block|syntax|javascript|1167428|++++4|1167429|因为Measure-Command返回一个TimeSpan对象。|offset|length|1167430|注意:+TimeSpan对象的TotalMilliseconds也是双精度的(比如我上面的例子中是4.7322+TotalMilliseconds+)，这可能会对您有用。就像TotalSeconds，TotalDays等。|1167431|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/measure-command?view=powershell-7.1|1|https://docs.microsoft.com/en-us/dotnet/api/system.timespan?view=net-5.0^0|0|0|0|2|F|0|L|8|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|I|3|J|5|6|7|11|8|@]|9|@$K|12|L|13|1|14]|$K|15|L|16|1|17]]|A|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

A more PowerShell inspired way to access the value of properties you care about:
<pre><code>$myCommand = .\do_something.ps1
Measure-Command { Invoke-Expression $myCommand } | Select -ExpandProperty Milliseconds
</code></pre>
<pre><code> 4
</code></pre>
As <a href="https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/measure-command?view=powershell-7.1" rel="nofollow noreferrer">Measure-Command</a> returns a <a href="https://docs.microsoft.com/en-us/dotnet/api/system.timespan?view=net-5.0" rel="nofollow noreferrer">TimeSpan</a> object.
note: The TimeSpan object also has TotalMilliseconds as a double (such as 4.7322 TotalMilliseconds in my case above) which might be useful to you. Just like TotalSeconds, TotalDays, etc.

Is there a simple way to time the execution of a command in PowerShell, like the 'time' command in Linux? 
I came up with this:

<pre><code>$s=Get-Date; .\do_something.ps1 ; $e=Get-Date; ($e - $s).TotalSeconds
</code></pre>

But I would like something simpler like

<pre><code>time .\do_something.ps1
</code></pre>

Timing a command's execution in PowerShell

Linux

Unix

在PowerShell中，有没有一种简单的方法来计算命令的执行时间，就像Linux中的“time”命令一样？我想出了这个：$s=Get-Date; .\do_something.ps1 ; $e=Get-Date; ($e - $s).TotalSeconds但是我想要一些简单的东西，比如time .\do_something.ps1

问在PowerShell中为命令的执行计时
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