windows 每分钟在后台运行一次 powershell 脚本
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Run a powershell script in the background once per minute
提问by magol
I want a powershell script to be run once per minute in the background. No window may appear. How do I do it?
我希望在后台每分钟运行一次 powershell 脚本。可能不会出现任何窗口。我该怎么做？
回答by Joey
Use the Windows Task Scheduler and run your script like this:
使用 Windows 任务计划程序并像这样运行您的脚本：
powershell -File myScript.ps1 -WindowStyle Hidden
Furthermore create the script that it runs under a specific user account and not only when that user is logged on. Otherwise you'll see a console window.
此外，创建它在特定用户帐户下运行的脚本，而不仅仅是在该用户登录时运行。否则你会看到一个控制台窗口。
回答by Roman Kuzmin
Perhaps this scenario will do. We do not start PowerShell executable every minute (this is expensive, BTW). Instead, we start it once by calling an extra script that calls the worker script once a minute (or actually waits a minute after the worker script exits or fails).
也许这种情况会发生。我们不会每分钟启动 PowerShell 可执行文件（这很昂贵，顺便说一句）。相反，我们通过调用一个额外的脚本来启动它，该脚本每分钟调用一次工作脚本（或者在工作脚本退出或失败后实际等待一分钟）。
Create the starting Invoke-MyScript.ps1:
创建起始 Invoke-MyScript.ps1：
for(;;) {
try {
# invoke the worker script
C:\ROM\_110106_022745\MyScript.ps1
}
catch {
# do something with $_, log it, more likely
}
# wait for a minute
Start-Sleep 60
}
Run this from Cmd (e.g. from a startup .bat file):
从 Cmd 运行它（例如从启动 .bat 文件）：
start /min powershell -WindowStyle Hidden -Command C:\ROM\_110106_022745\Invoke-MyScript.ps1
The PowerShell window appears for a moment but it is minimized due to start /minand just in a moment it gets hidden forever. So that actually only the task bar icon appears for a moment, not the window itself. It's not too bad.
PowerShell 窗口会出现片刻，但由于start /min它被永久隐藏，因此它被最小化。所以实际上只有任务栏图标出现片刻，而不是窗口本身。还不错。
回答by xemlock
Schedule your task to be run as System. The command below will schedule a script to be run in the background without showing powershell console window:
安排您的任务作为系统运行。下面的命令将安排一个脚本在后台运行而不显示 powershell 控制台窗口：
schtasks /create /tn myTask /tr "powershell -NoLogo -WindowStyle hidden -file myScript.ps1" /sc minute /mo 1 /ru System
/ruswitch lets you change the user context in which the scheduled task will be executed.
/ruswitch 允许您更改将在其中执行计划任务的用户上下文。
回答by sippybear
To create a background powershell task to run a script that repeats every minute with no visible window at all, run powershell as administrator and then use the Register-ScheduledJobcmdlet to run your script. Here's an example of how to make that happen:
要创建后台 powershell 任务以运行每分钟重复一次且根本没有可见窗口的脚本，请以管理员身份运行 powershell，然后使用Register-ScheduledJobcmdlet 运行您的脚本。以下是如何实现这一目标的示例：
Register-ScheduledJob -Name 'SomeJobName' -FilePath 'path\to\your\ps1' -Trigger (New-JobTrigger -Once -At "9/28/2018 0am" -RepetitionInterval (New-TimeSpan -Minutes 1) -RepetitionDuration ([TimeSpan]::MaxValue))
If you want to manually force this job to run (perhaps for troubleshooting purposes) you can use the Get-ScheduledJobcmdlet like this:
如果您想手动强制运行此作业（可能是出于故障排除目的），您可以Get-ScheduledJob像这样使用cmdlet：
(Get-ScheduledJob -Name 'SomeJobName').StartJob()
回答by Mike Brady
On the [General] tab in the Task Scheduler properties for the task, selecting the "Run whether user is logged on or not" radio button prevents the window from appearing on my Windows 7 machine.
在任务的任务计划程序属性的 [常规] 选项卡上，选择“无论用户是否登录都运行”单选按钮可防止该窗口出现在我的 Windows 7 计算机上。
回答by Chris
These answers are histerical! If you want to run a powershell script as a background job try start-job .\script from the CLI within the folder you house scripts in.
这些答案是历史性的！如果您想将 powershell 脚本作为后台作业运行，请尝试从 CLI 中存放脚本的文件夹中的 start-job .\script 。
回答by Ravi Prajapati
If you want to run script automatically in time interval. (for windows os)
如果要按时间间隔自动运行脚本。（对于 Windows 操作系统）
1) Open Schedule tasks from control panel.
2) Select Task Scheduler Library from left side window.
3) select Create Task from right side window.
4) Enter Name in General tab (any name).
5) Open Triggers tab -> New
6) Select interval as needed.Use Advanced settings for repeat task.
7) Open Actions tab ->New
8) Copy/Paste following line in Program/script *
* Here D:\B.ps1 in code is path to my B.ps1 file
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe D:\B.ps1
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe D:\B.ps1
9) ok and apply changes
10) Done!
回答by SMBINNP
# Filecheck.ps1
# Version 1.0
# Use this to simply test for the existance of an input file... Servers.txt.
# I want to then call another script if the input file exists where the
# servers.txt is neded to the other script.
#
$workpath=".\Server1\Restart_Test"
# Created a functon that I could call as part of a loop.
function Filecheck
{
if (test-path $workpath\servers.txt)
{
rename-item $workpath\servers.txt servers1.txt
"Servers.txt exist... invoking an instance of your script agains the list of servers"
Invoke-Expression .\your_Script.ps1
}
Else
{
"sleeping"
Start-Sleep -Seconds 60
}
}
Do
{
Filecheck
$fred=0
# Needed to set a variabe that I could check in the while loop.
# Probably a better way but this was my way.
}
While( $fred -lt 1 )
