PSScriptAnalyzer

While developing scripts in VSCode, you might see squiggly lines (indicating issues with your code) and a tab called PROBLEMS at the bottom of the window. These notifications are courtesy of PSScriptAnalyzer, a very versatile PowerShell module that helps to analyze your scripts for issues and errors:

Outside of VSCode, or during a build process, you can use PSScriptAnalyzer by using the exported cmdlets of that module. You can specify which built-in rules and rule sets to apply, as well as exclude certain rules on demand:

# On PS Gallery
Install-Module PSScriptAnalyzer -Force

Get-Command -Module PSScriptAnalyzer

# this triggers the analyzer
# Aliases should not be used
Get-Process | Where Name -eq explorer

# this also triggers a rule
# Variables that are not consumed should be removed
$var = "test"

Invoke-ScriptAnalyzer -Path .\Ch5\06_PSScriptAnalyzer.ps1

# you can exclude specific rules
# The argument completer should give you a list of all rules
Invoke-ScriptAnalyzer...