# Package io.vertx.groovy.ext.shell.command

- Class Summary
  Class | Description
  --- | ---
  Command | A Vert.x Shell command, it can be created from any language using the CommandBuilder.command or from a Java class using Command.create
  CommandBuilder | A build for Vert.x Shell command.
  CommandProcess | The command process provides interaction with the process of the command provided by Vert.x Shell.
  CommandRegistry | A registry that contains the commands known by a shell.
  CommandResolver | A resolver for commands, so the shell can discover commands.