How to run a PowerShell script?

Question

Guys and Gals, a really stupid 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 withot --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 dependant 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 PowerShell

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# app :-)

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 environent like cmd.exe e.g.:

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

Answer 3

I've had the same problem, and 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 4

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.