I have a custom PowerShell module with two cmdlets. I have it successfully, but manually, deployed on my machine. However, I deployed it by placing the binary file and module manifest in a location, and then registering the module. I also had to manually write an Import-Module command into my 'all users' profile.
Now I am sure I can deploy this module with Publish-Module, but how do I get the Install-Module to write the Import-Module statement to the profile file?
As of PowerShell 3.0, a module is automatically imported when a command from the module is invoked. This was a brilliant on Microsoft's part; however, it did require that modules are located in a location where PowerShell looks for modules by default. Makes sense. You can see those locations by running the following command:
$env:PSModulePath -split ';'
Is there a reason you'd rather not use one of the paths stored in the above environmental variable? That said, I'd keep your code out of the "C:\Windows\System32..." path. The other options are better: "C:\Program Files\PowerShell\Modules" (AllUsers) and "C:\Users\tommymaynard\Documents\PowerShell\Modules" (CurrentUser). Depending on your PowerShell version/OS, those path could be different. You won't need to write an Import-Module command into a $PROFILE script if you get the module into a preferred location. Maybe you already know this, but maybe not.
You're not going to get Install-Module to write to any of the $PROFILE scripts.
$PROFILE | Select-Object -Property *
Well, not by default anyway. You could write your own Install-Module function, that runs PowerShellGet's Install-Module function, and includes writing to various $PROFILE scripts. The problem is that you'll need to include logic so you don't blow away the contents of someone's $PROFILE script if it's not empty, and only append to it.
Seriously though, this is turning into a lot of work, when you could drop the module into a location where PowerShell can find it on its own.
Edit: It just occurred to me, you can add a value/path to the $env:PSModulePath environmental variable. It's a single string with semi-colon delimiters:
$env:PSModulePath.GetType().Name
Therefore, it'd look like this:
$env:PSModulePath += ';C:\Another\Path'
That's great and all, but again how might you stage this, right? It takes you back to the write-to-all-the-$PROFILE-scripts problem,... although you may be able to update the variable via Group Policy Preferences. Again, probably better to just relocate your module.
Related
If I open a new Powershell 7 session and run get-command Get-Website
the response I get is
Get-Command: The term 'Get-Website' is not recognized as a name of a cmdlet, function, script file, or executable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
If I then run import-Module WebAdministration and again run get-command Get-Website, this time I get the expectefd output of
CommandType Name Version Source
----------- ---- ------- ------
Function Get-Website 1.0 WebAdministration
If I close the Powershell 7 session, open a new one and run get-command Get-Website, the new session does not recognise the command.
If I run a session of Windows Powershell, I do not have to import the module, the command is already there.
Anyone able to explain what is going on?
Thanks
You are not the only person having this problem. Unfortunately, I can't speak to whether any of the solutions there work, as neither the asker or anyone else has confirmed them.
Note: I had originally suspected this might be a problem with automatic importing through the WindowsCompatibility module, but it appears that it does not interfere with auto-importing of modules. In addition, as of PowerShell 7 the WindowsCompatibility module features are baked into PowerShell itself.
For whatever reason, WebAdministration may not be able to be automatically imported in PowerShell Core. There are a few reasons for this but they are mostly on the module side, and you can't change the behavior without modifying the module.
You can try setting $PSModuleAutoLoadingPreference = 'All' in your current PowerShell session, but generally that doesn't need to be changed from the default value of ModuleQualified. More information on $PSModuleAutoLoadingPreference can be found here.
If that doesn't work, you'll have to manually import the module in every session.
Fortunately, manually importing modules isn't required for the vast majority of them. For the ones which can't be automatically imported, you must use Import-Module MODULENAME in each new session. You can simplify this by adding the Import-Module cmdlet to one of the following profile locations:
$profile.CurrentUserCurrentHost
$profile.CurrentUserAllHosts
$profile.AllUsersCurrentHost
$profile.AllUsersAllHosts
For scripts, Import-Module should generally be done inside the script to prevent needing profiles in scenarios where profile loading is desired to be disabled such as when PowerShell is invoked in the following way: powershell.exe -NoProfile ....
In your case, it would like like so:
Import-Module WebAdministration
Here is some additional information about the $profile variable.
I am creating a pool in F5.
i came across the below link which gives a function of creating a Pool.
(https://www.powershellgallery.com/packages/f5-ltm/1.4.154/Content/Public%5CNew-Pool.ps1)
All the things are fine. i have installed F5-LTM module for powershell also.
Install-Module -Name F5-LTM -RequiredVersion 1.4.280
I am not able to see the "New-F5Item" cmdlts.
Can you please let me know about this cmdlet.
Thank you
If you look at the file list in PSGallery, you'll notice that the package contains the script file Private\New-F5Item.ps1, indicating that New-F5Item is probably not exported by the module.
When a command is not exported, it can only be discovered/called from other functions in the same module - which is why you don't see it when doing Get-Command or similar.
I'm working with DNS resource records in Powershell 5 using code that I inherited from the guy who was trying to do this before me. The cmdlet I am trying to use is Add-DnsServerResourceRecordA.
Part of his code has import-module certain folder\PowerShell\Modules\DnsServer. The weird thing is, it seems like as I was trying bits and pieces of the code earlier, I was able to use the add-DNSblah cmdlet. Now, after It ried running the whole script including the import-module, Powershell is saying that the cmdlet does not exist natively, and when I import the module and run it it is giving me Add-DnsServerResourceRecordA: Invalid Class.
It is my understanding that Add-DnsServerResourceRecordA should be included in my normal Powershell 5.0. Could that Import-Module have permanently damaged PS somehow? Why else would the cmdlet not show up, even in a Get-Command "dns"?
I'm pretty sure you will need the Remote Server Administration Tools (RSAT) installed to have these cmdlets available on a non-server Windows OS.
You can download them from this page: https://www.microsoft.com/en-gb/download/details.aspx?id=45520.
Not really sure why the Import-Module does not fail if the DNSServer module is not present on the system.
If RSAT are already installed, you can try to reinstall them.
I was just reading the PowerShell Modules guide page and I noticed a line on the Import-Module section:
The following actions trigger automatic importing of a module, also
known as "module auto-loading."
Using a cmdlet in a command. For
example, typing Get-ExecutionPolicy imports the
Microsoft.PowerShell.Security module that contains the
Get-ExecutionPolicy cmdlet.
So given that, why should we ever care about using Import-Module? Isn't it always taken care for us automatically? In what case would I need to explicitly write out Import-Module?
You have to use Import-Module in the following cases :
The module file is not in a path included in $PSModule Path
You have different modules with the same name but in different paths
The module is already loaded and you want to reload it after making modifications to it. (with -Force)
To import only specific cmdlets, functions or variables from that module (with the -Cmdlet, -Function, and -Variable parameters respectively)
To prevent loading cmdlets or functions from the module that would overwrite the commands with the same name and are already loaded in the current session ( with -NoClobber )
To add a prefix to the nouns of the cmdlets in this module ( with -Prefix)
To import a module from a remote computer (with the -PSSession parameter )
The list is not totally exhaustive but these are the main use cases for the Import-Module cmdlet.
I know there is already an accepted answer, but I wanted to add my two cents.
To explicitly document the dependency of a script upon a module
If $PSModuleAutoloadingPreference is set to "none", modules need to be explicitly loaded. You don't know if users have turned this off or not.
I'm learning PowerShell and I'm trying to build my own module library.
I've written a simple module XMLHelpers.psm1 and put in my folder $home/WindowsPowerShell/Modules.
When I do:
import-module full_path_to_XMLHelpers.psm1
It works. But when I do:
import-module XMLHelpers
It doesn't work and I get the error:
Import-Module : The specified module 'xmlhelpers' was not loaded because no valid module file was found in any module directory.
I've checked that the environment variable PSModulePath contains this folder. As it is a network folder, I've also tried to move it to a local folder and to modify PSModulePath but without success
$env:PSModulePath=$env:PSModulePath+";"+'C:\local'
Any idea on what could cause this issue?
The module needs to be placed in a folder with the same name as the module. In your case:
$home/WindowsPowerShell/Modules/XMLHelpers/
The full path would be:
$home/WindowsPowerShell/Modules/XMLHelpers/XMLHelpers.psm1
You would then be able to do:
import-module XMLHelpers
1.This will search XMLHelpers/XMLHelpers.psm1 in current folder
Import-Module (Resolve-Path('XMLHelpers'))
2.This will search XMLHelpers.psm1 in current folder
Import-Module (Resolve-Path('XMLHelpers.psm1'))
I think that the Import-Module is trying to find the module in the default directory C:\Windows\System32\WindowsPowerShell\v1.0\Modules.
Try to put the full path, or copy it to C:\Windows\System32\WindowsPowerShell\v1.0\Modules
I experienced the same error and tried numerous things before I succeeded. The solution was to prepend the path of the script to the relative path of the module like this:
// Note that .Path will only be available during script-execution
$ScriptPath = Split-Path $MyInvocation.MyCommand.Path
Import-Module $ScriptPath\Modules\Builder.psm1
Btw you should take a look at http://msdn.microsoft.com/en-us/library/dd878284(v=vs.85).aspx which states:
Beginning in Windows PowerShell 3.0, modules are imported automatically when any cmdlet or function in the module is used in a command. This feature works on any module in a directory that this included in the value of the PSModulePath environment variable ($env:PSModulePath)
I had this problem, but only in Visual Studio Code, not in ISE. Turns out I was using an x86 session in VSCode. I displayed the PowerShell Session Menu and switched to the x64 session, and all the modules began working without full paths. I am using Version 1.17.2, architecture x64 of VSCode. My modules were stored in the C:\Windows\System32\WindowsPowerShell\v1.0\Modules directory.
Some plugins require one to run as an Administrator and will not load unless one has those credentials active in the shell.
My finding with PS 5.0 on Windows 7: $ENV:PsModulePath has to end with a . This normally means it will load all modules in that path.
I'm not able to add a single module to $env:PsModulePath and get it to load with Import-Module ExampleModule. I have to use the full path to the module. e.g. C:\MyModules\ExampleModule. I am sure it used to work.
For example:
Say I have the modules:
C:\MyModules\ExampleModule
C:\MyModules\FishingModule
I need to add C:\MyModules\ to $env:PsModulePath, which will allow me to do
Import-Module ExampleModule
Import-Module FishingModule
If for some reason, I didn't want FishingModule, I thought I could add C:\MyModules\ExampleModule only (no trailing \), but this doesn't seem to work now. To load it, I have to Import-Module C:\MyModules\ExampleModule
Interestingly, in both cases, doing Get-Module -ListAvailable, shows the modules, but it won't import. Although, the module's cmdlets seem to work anyway.
AFAIK, to get the automatic import to work, one has to add the name of the function to FunctionsToExport in the manifest (.psd1) file. Adding FunctionsToExport = '*', breaks the auto load. You can still have Export-ModuleMember -Function * in the module file (.psm1).
These are my findings. Whether there's been a change or my computer is broken, remains to be seen. HTH
try with below on powershell:
Set-ExecutionPolicy -ExecutionPolicy Unrestricted
import-module [\path\]XMLHelpers.psm1
Instead of [] put the full path
Full explanation of this and that
First of all check Your account type,some imports are not allowed to normal partner accounts.