linux - history clear

First do a

history -c

and then a

history -w

to actually write everything on the .bash_history file (and overwrite it).
Then a

reset

clears the scroll buffer as well and all the past is forgotten and erased!

source - https://lists.fedoraproject.org/pipermail/users/2006-May/290451.html

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# history -c && history -w