How to Clear Bash History Completely in Linux

~/.bash_history holds the history.

To clear the bash history completely on the server, open terminal and type cat /dev/null > ~/.bash_history

Other alternate way is to link ~/.bash_history to /dev/null

The history comes back when you login back. The history entries has a copy in the memory and it will flush back to the file when you log out.

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

Alternative Method:

history -c && history -w

Why: As noted above, history -c empties the file ~/.bash_history. It is important to note that bash shell does not immediately flush history to the bash_history file. So, it is important to (1) flush the history to the file, and (2) clear the history, in all terminals. That’s what the commands above do.

May 24, 2016   862    
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