This question already has an answer here:
- How to clear bash history completely? 8 answers
I want to make a bash script that clears the history i.e. works similarly as the command
So I started with the following code:-
#!/bin/bash history #displaying history history -c #clearing history
None of them worked. On some searching around, I came to know that bash disables history in non-interactive shells by default, but we can turn it on. So after editing I tried the following code :-
#!/bin/bash HISTFILE=~/.bash_history # Or wherever you bash history file lives set -o history # enable history history history -c
It shows the output :-
[root@localhost lib]# bash a.sh 1 history [root@localhost lib]#
And besides that the hisory -c command did not work. Because I am still getting the history of commands when I type history. This means both history and history -c didnt work inside the bash script.
How should we use it then?
EDIT 1- I want to delete the history of the current session, it must be stored somewhere. I have tried using commands like the following but to no effect:-
cat /dev/null > ~/.bash_history && history -c && exit
cat /dev/null > ~/.bash_history
P.S.-This is not a duplicate question. Please try to understand the difference before marking it as duplicate. I want to clear the history of the current session through a script . I don't care if it is written back or whatever. The other question is about to permanently delete the history. It has nothing to do with the script or through other terminal.