Ubuntu change default editor from nano to vi

update-alternatives --config editor
There are 4 choices for the alternative editor (providing /usr/bin/editor).


 Selection    Path                Priority   Status
------------------------------------------------------------
* 0            /bin/nano            40        auto mode
  1            /bin/ed             -100       manual mode
  2            /bin/nano            40        manual mode
  3            /usr/bin/vim.basic   30        manual mode
  4            /usr/bin/vim.tiny    15        manual mode


Press <enter> to keep the current choice[*], or type selection number: 3
update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/editor (editor) in manual mode

References

• Change the Default Editor From Nano on Ubuntu Linux

Daniel Simao 09:48, 19 June 2019 (EDT)