Oct 11 2017

Windows PowerShell Module Directory #powershell, #module #directory, #scripting #language, #microsoft, #powershell #module #directory


PowerShell Module Directory

Introduction to PowerShell Modules

PowerShell modules are like mini-apps, they have instructions to deliver useful gismos. Configuring the path for the Import-Module cmdlet requires moderately complex preparation, and the purpose of this page is just get readers started.

PowerShell Modules Topics

You need a known path where your .psm1 modules are stored. I would start by finding $Profile. Then try PSProfilePath.

We need to start with the trickiest member of the module family ‘Import’. There are two factors to ensure success of my experiment:
a) Creating a simple test module containing PowerShell commands and with a .psm1 extension.
b) Making a note of the path to your saved .psm1 file.

Create a Test Module
Here is our test module, it has two functions ‘Grow’ and ‘Shrink’.

I suggest we call the file: Balance.psm1

Now for the key part, the path; I suggest saving this file to:

function Grow <
if(!(Test-Path variable:script:count)) < $script:count = 0 >
This is where Guy adds one <0>! -f $script:count
function Shrink <
if(!(Test-Path variable:script:count)) < $script:count = 0 >
Now Eddie takes one away <0>! -f $script:count

Import and Test

Once the PowerShell module directory is ready then you can import the code.

$Location= C:\Users\YourName\Documents\WindowsPowerShell\Modules
Import-Module $Location\Balance.psm1

When the module loads sucessfully, two functions are available; to tes them type: ‘Grow’, or ‘Shrink’.

Note 1: I introduced the $Location variable merely to highlight that you need to amend this value to suit your profile, e.g. YourName is not the correct folder. Incidentally, it seems to me that Import-Module needs the full path.

Note 2: Just to emphasise, you do need to create a file called ‘Balance’ with a modules extension (.psm1) for this to work.

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This displays the added, loaded, or to use the correct verb, imported modules; in this example you should see:

Note 3: If this ‘Balance’ module has loaded then you will be able to use the functions ‘Grow’ and ‘Shrink’.

Reminder of The Recommended PowerShell Module Directory

Documents folder Path \WindowsPowerShell\Modules\ Module Folder \ Files

The module manager should honour scripts marked with the appropriate Zone Identifier, as a result the modules conform the PowerShell script execution policy.

Loading Modules Automatically Through Profile

Individual user’s profiles, and programs such as ‘Word’ each have a ‘Startup’ folder; in the case of PowerShell, we can access it via the $Profile variable. Actually, there are two profile files, one for PowerShell’s ISE and another for the plain command-line PowerShell. Fortunately, you can launch notepad and edit either of them.

See All Members of the Modules Family

Get-Command -Noun module

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