Delete historical records in Linux

Article Title: delete historical records in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Note: If the target is a linux server during intrusion, do not forget the history of the history command.

1. Modify/etc/profile and change HISTSIZE = 1000 to 0 or 1.

Clear the user home path. Bash_history

2. immediately clear the history of the history commands in it.

History-c

3. When bash executes a command, it does not immediately write the command name into the history file, but stores it in the internal buffer. It is written when bash exits.

However, you can call the 'History-W' command to require bash to update the history file immediately.

History-w