Extract module dependency information from a script. **Note**: will show errors for commands not available on your system.

Find-Dependencies.ps1

#requires -Module Reflection
function Find-Dependencies {
    param($Path)

    Get-ParseResults $Path | 
        Find-Token { $_ -is "System.Management.Automation.Language.CommandAst" } | 
        Get-Command -Name { $_.CommandElements[0].Value } -ea continue | # Errors will appear for commands you don't have available
        Sort Source, Name | 
        Group Source |
        Select @{N="Module";e={$_.Name}}, @{N="Used Commands";E={$_.Group}}
}