How to disable bash shell history in Linux?

Display current history

Just type the history command:

history | less
history | more
history | grep 'find'

How to find out the number of commands saved in the history

Use echo command or printf command :

echo "$HISTSIZE"

printf "%d\n" $HISTSIZE

Sample outputs:

The value of the HISTSIZE variable indicates that the 1000 number of commands saved in a history list.

Where are my bash history commands stored

The history is initialized from the file named by the variable HISTFILE. The default is the ~/.bash_history file. To view current settings run:

echo "$HISTFILE"

printf "%s\n" "$HISTFILE"

Sample outputs:


How to disable BASH shell history on Linux or Unix

You can remove HISTFILE shell variable by typing the following unset command:


Add above line to the end of to a new /etc/profile.d/ file or ~/.bash_profile:

echo 'unset HISTFILE' >> /etc/profile.d/

echo 'unset HISTFILE' >> ~/.bash_profile

How to permanently disable bash history using set command

Another option is to pass the "+o history" option to the set builtin command:

set +o history

Again add "set +o history" to the end of to a new /etc/profile.d/ file or ~/.bash_profile. See how to set and use shell option in bash for more info.

How to clear the bash history

Type the following command in your current session:

history -c

To delete a single command number 42 from history in Linux/Unix:

history -d 42
Was this answer helpful? 0 Users Found This Useful (0 Votes)