How to archive all the DONE tasks using a single command

Question

To archive the DONE tasks i am using

C-c C-x a

command. The draw back is i have to manually move over the DONE tasks one by one and then ar

Answer 1

If you want to do it in the source Org buffer (as opposed to in an Org agenda view), and if they are following each other, you can select all of them in a region, and apply a command (such as C-c C-t d).

Only setting needed:

;; Some commands act upon headlines in the active region.
(setq org-loop-over-headlines-in-active-region 'start-level)