Tests to verify that the script is running as a domain user or local user

Test-DomainUser.ps1

<#
.Synopsis
   Verifies if currently logged in user is a local user or domain user
.DESCRIPTION
   This function will evaluate the users domain and determine if the current user is a domain user or local user. If true is returned the user is a domain user, if false is returned the user is a local user.
.EXAMPLE
    Test-DomainUser
    This will return a true/false indicating if the user is a domain user or not
.EXAMPLE
    Test-DomainUser -Verbose
    This will return a true/false indicating if the user is a domain user or not. Verbose output will be shown.
.OUTPUTS
   Boolean value
.NOTES
   Author: Jake Morrison
   http://techthoughts.info
#>
function Test-DomainUser {
    [CmdletBinding()]
    Param()
    [bool]$domainUser = $true #assume they are
    Write-Verbose -Message "Getting current domain of user..."
    $dom = $env:USERDOMAIN.ToUpper()
    Write-Verbose -Message "Domain: $dom"
    Write-Verbose -Message "Getting hostname..."
    $hostName = hostname
    $hostName = $hostName.ToUpper()
    Write-Verbose -Message "Hostname: $hostName"
    Write-Verbose -Message "Evaluating if domain user or local user..."
    if ($dom -eq $hostName) {
        Write-Verbose "Context user: $dom\$env:USERNAME"
        Write-Verbose "User is a local user"
        $domainUser = $false
    }
    else {
        Write-Verbose "Context user: $dom\$env:USERNAME"
        Write-Verbose "User is a domain user"
    }
    return $domainUser
}