====== base-exec-user ======

Executes a command as a given user.
Command is executed using ssh if the user is not on localhost.

===== Usage =====

  base-exec-user USER COMMAND

  * ''USER'': A key of an user definition in the repository. From this, the following properties are used:
    * ''HOST_REF'' (required if ''REMOTE_HOST'' is not set): A key to a host definition in the repository.
    * ''REMOTE_HOST'' (optional): If ''REMOTE_HOST'' is not defined, ''HOST_REF'' must be present.
    * ''REMOTE_USER'' (optional): The user execute the command remotely. If not present, same as local user will be taken.
  * ''COMMAND'': A command to be executed. It is executed either locally or remote using [[base-ssh-login]].

===== Returns =====

Returns the output of the command.