Clearing out your bash history can be quite a hassle as it keeps a copy in the memory that will be flushed at the moment you log out. There is a workaround:
cat /dev/null > ~/.bash_history && history -c && exitAfter this command the history is wiped.
I use this when creating binary copies of the filesystem when I do not want to include any history (Create bitwise copy of EMMC/SD/HDD/SDD over the network (backup using ssh pipe)).
Source: https://askubuntu.com/a/192001
If you were ever to create an image of your OS for example, but do not want to include your history.
It also wipes the history still in the memory.
cat /dev/null > ~/.bash_history && history -c && exitAlso, if you don’t even want that your command ends up in your bash history in the first place, add a space at the start of you command and it will not be in your bash history!
> echo "inhistory" > blaa
> echo "notinhistory" > blaa #notice the spaceThe “notinhistory” is not in the history file:
> history | tail -n1
10438 echo "inhistory" > blaa
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