functions/Get-DbaConfig.ps1

function Get-DbaConfig
{
    <#
        .SYNOPSIS
            Retrieves configuration elements by name.
         
        .DESCRIPTION
            Retrieves configuration elements by name.
            Can be used to search the existing configuration list.
         
        .PARAMETER Name
            Default: "*"
            The name of the configuration element(s) to retrieve.
            May be any string, supports wildcards.
         
        .PARAMETER Module
            Default: "*"
            Search configuration by module.
         
        .PARAMETER Force
            Overrides the default behavior and also displays hidden configuration values.
         
        .EXAMPLE
            PS C:\> Get-DbaConfig 'Mail.To'
             
            Retrieves the configuration element for the key "Mail.To"
     
        .EXAMPLE
            PS C:\> Get-DbaConfig -Force
     
            Retrieve all configuration elements from all modules, even hidden ones.
         
        .NOTES
            Author: Friedrich Weinmann
            Tags: Config
    #>

    [CmdletBinding()]
    Param (
        [string]
        $Name = "*",
        
        [string]
        $Module = "*",
        
        [switch]
        $Force
    )
    
    $Name = $Name.ToLower()
    $Module = $Module.ToLower()
    
    [sqlcollective.dbatools.Configuration.Config]::Cfg.Values | Where-Object { ($_.Name -like $Name) -and ($_.Module -like $Module) -and ((-not $_.Hidden) -or ($Force)) } | Sort-Object Module, Name
}