How to run a PowerShell script

Question

How do I run a PowerShell script?

• I have a script named myscript.ps1
• I have all the necessary frameworks installed
• I set that execution policy thing
• I have followed the instructions on this MSDN help page and am trying to run it like so: powershell.exe 'C:\my_path\yada_yada\run_import_script.ps1' (with or without --noexit)

which returns exactly nothing, except that the file name is output.

No error, no message, nothing. Oh, when I add -noexit, the same thing happens, but I remain within PowerShell and have to exit manually.

The .ps1 file is supposed to run a program and return the error level dependent on that program's output. But I'm quite sure I'm not even getting there yet.

What am I doing wrong?

Answer 1

1. Launch Windows PowerShell, and wait a moment for the PS command prompt to appear

2. Navigate to the directory where the script lives

   PS> cd C:\my_path\yada_yada\ (enter)
   

3. Execute the script:

   PS> .\run_import_script.ps1 (enter)
   

What am I missing??

Or: you can run the PowerShell script from cmd.exe like this:

powershell -noexit "& ""C:\my_path\yada_yada\run_import_script.ps1""" (enter)

according to this blog post here

Or you could even run your PowerShell script from your C# application :-)

Asynchronously execute PowerShell scripts from your C# application

Answer 2

If you are on PowerShell 2.0, use PowerShell.exe's -File parameter to invoke a script from another environment, like cmd.exe. For example:

Powershell.exe -File C:\my_path\yada_yada\run_import_script.ps1

Answer 3

If you want to run a script without modifying the default script execution policy, you can use the bypass switch when launching Windows PowerShell.

powershell [-noexit] -executionpolicy bypass -File <Filename>

Answer 4

Type:

powershell -executionpolicy bypass -File .\Test.ps1

NOTE: Here Test.ps1 is the PowerShell script.

Answer 5

I've had the same problem, and I tried and tried... Finally I used:

powershell.exe -noexit "& 'c:\Data\ScheduledScripts\ShutdownVM.ps1'"

And put this line in a batch-file, and this works.

Answer 6

If you only have PowerShell 1.0, this seems to do the trick well enough:

powershell -command - < c:\mypath\myscript.ps1

It pipes the script file to the PowerShell command line.

Answer 7

Pretty easy. Right click the .ps1 file in Windows and in the shell menu click on Run with PowerShell.

Answer 8

Using cmd (BAT) file:

@echo off
color 1F
echo.

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy Bypass -File "PrepareEnvironment.ps1"

:EOF
echo Waiting seconds
timeout /t 10 /nobreak > NUL

If you need run as administrator:

1. Make a shortcut pointed to the command prompt (I named it Administrative Command Prompt)
2. Open the shortcut's properties and go to the Compatibility tab
3. Under the Privilege Level section, make sure the checkbox next to "Run this program as an administrator" is checked

Answer 9

If your script is named with the .ps1 extension and you're in a PowerShell window, you just run ./myscript.ps1 (assuming the file is in your working directory).

This is true for me anyway on Windows 10 with PowerShell version 5.1 anyway, and I don't think I've done anything to make it possible.

Answer 10

An easy way is to use PowerShell ISE, open script, run and invoke your script, function...

Answer 11

In case you want to run a PowerShell script with Windows Task Scheduler, please follow the steps below:

1. Create a task

2. Set Program/Script to Powershell.exe

3. Set Arguments to -File "C:\xxx.ps1"

It's from another answer, How do I execute a PowerShell script automatically using Windows task scheduler?.

Answer 12

• Give the path of the script, that is, path setting by cmd:

  $> . c:\program file\prog.ps1

• Run the entry point function of PowerShell:

  For example, $> add or entry_func or main

Answer 13

I have a very simple answer which works:

1. Open PowerShell in administrator mode
2. Run: set-executionpolicy unrestricted
3. Open a regular PowerShell window and run your script.

I found this solution following the link that was given as part of error message: About Execution Policies

Edit: Make sure to run set-ExecutionPolicy default once you're done, or you will be exposed to seurity risks (thanks Anonymous user).

Answer 14

You can run from cmd like this:

type "script_path" | powershell.exe -c -

Answer 15

Use the -File parameter in front of the filename. The quotes make PowerShell think it is a string of commands.