how to clear history of shell that a bash script executed from it in linux?

Question

I have a bash script in Linux and i want to clear history of shell that my script executed from it.

I know that history -c clears current session history, but i want to clear parent session history.

My script is look like this:

#!/bin/bash

# my code

history -c

cat /dev/null > ~/.bash_history

but it doesn't work!

How can i do this?

Answer 1

I try this and it works, but after re switch to root user:

su - root -c "history -c"
su - root -c "cat /dev/null > ~/.bash_history"

history -c
cat /dev/null > ~/.bash_history