tellraw @a ["",{"text":"[Backup] ","color":"gray","italic":true},{"text":"Starting backup...","color":"gray","italic":true,"hoverEvent":{"action":"show_text","value":{"text":"","extra":[{"text":"2021-01-01_00-00-00.tar.gz"}]}}}]
save-off
save-on
save-all
tellraw @a ["",{"text":"[Backup] ","color":"gray","italic":true},{"text":"Backup complete!","color":"green","italic":true,"hoverEvent":{"action":"show_text","value":{"text":"","extra":[{"text":"0 s, 4.0K/4.0K, 316%"}]}}}]