update-alternatives creates, removes, maintains and displays
information about the symbolic links comprising the ALT Linux
alternatives system.

It is possible for several programs fulfilling the same or similar
functions to be installed on a single system at the same time.  For
example, many systems have several text editors installed at once.
This gives choice to the users of a system, allowing each to use a
different editor, if desired, but makes it difficult for a program
to make a good choice of editor to invoke if the user has not
specified a particular preference.

• Dmitry V. Levin

• update-alternatives