PowerShell - PSReadLine 2.1, PSReadLine 2.2 + Predictive IntelliSens

Hello koalas

This post is about the module PSReadLine.

Install PSReadLine

You can install the module from PowerShell Gallery by using this command:

Install-Module -Name PSReadLine

You can see all commands available for the module with this command:

Get-Command -Module PSReadLine

Result:

See all key bindings for PSReadLine

Get-PSReadLineKeyHandler

Result:

You should get this:

Basic editing functions

Cursor movement functions

History functions

Completion functions

Miscellaneous functions

Selection functions

Search functions

Enable Predictive IntelliSense History

Important: you must have PSReadLine 2.1 or higher to be able to enable this functionality.

Check what is the status of the predictive option with this command:

Get-PSReadLineOption | Select-Object -Property PredictionSource

Result:

none

Enable the predictive option with this command:

Set-PSReadLineOption -PredictionSource History

You should see prediction in grey when you start typing:

Enable Plugin Prediction (PSReadLine 2.2.0 or higher)

Important: you must install PSReadLine 2.2.0 or higher to access this functionality.

Check the last version of PSReadLine on PowerShell Gallery with this command:

Find-Module -Name PSReadLine -AllVersions -AllowPrerelease

Result (April 10th 2021):

Install the last version available:

Update-Module -Name PSReadLine -AllowPrerelease

Check you get the version 2.2.0 or higher of PSReadLine with the command:

Get-Module -Name PSReadLine

Result:

Now you should be able to set your module to get access to the ListView.

Here are the commands to use:

Set-PSReadLineOption -PredictionSource History

Set-PSReadLineOption -PredictionViewStyle ListView

Result:

Advice: you should add the 2 previous commands in your profile.

You can edit your profile by using this command:

notepad $profile

or

code $profile

An example of the lines I added to my profile to load the new predictive system of PSReadLine:

# PSReadLine Predictive System
Set-PSReadLineOption -PredictionSource History
Set-PSReadLineOption -PredictionViewStyle ListView

Result:

Switch Predictive View between InlineView and ListView

if you want to switch view between the InlineView and the ListView you can simply press: F2

Sources used