Improve & standardize help output:

• Improve text.
  • Terminate all text with a ..
• Standardize various variable names to conform to standardized naming in help, documentation, etc.
• List help in mas help output.

Apple IDs

Specify what Apple IDs are used for each subcommand:

macOS Apple ID

An Apple ID is associated with the current macOS user in System Settings/Preferences.

Swift

(UserDefaults.standard.persistentDomain(forName: "MobileMeAccounts")?["Accounts"] as? [[String: Any]])?.first?["AccountID"]

Command Line

defaults read MobileMeAccounts | plutil -extract "Accounts".0."AccountID" raw -o - -

Mac App Store Apple ID

You can sign in to an Apple ID in the Mac App Store.

Swift (macOs <= 10.12.x)

ISStoreAccount.primaryAccount.identifier

Command Line

Not sure…

Apple IDs Used by Commands

Currently, I think that the subcommands, when working, have the following interactions with the macOS & MAS Apple IDs:

• MAS
  • account
  • signin
  • signout
• MAS (requires app in macOS installed app list)
  • upgrade
• MAS (requires app not in macOS installed app list)
  • install
  • lucky
  • purchase
• macOS (requires app in macOS installed app list)
  • list
  • outdated
  • uninstall (currently used, but probably not strictly necessary)
• Neither
  • help
  • home
  • info
  • open
  • reset
  • search
  • vendor
  • version