Delete the history of Linux system

Note: The target of the invasion if it is a Linux server, see To avoid cleaning traces of the time do not forget history command records Oh!

1, modify the/etc/profile histsize=1000 to 0 or 1

Clears the user's home path. Bash_history

2, immediately empty the history record of the current history command

History-c

3, Bash executes the command not immediately write the command name to the history file, but stored in the internal buffer, and so bash exit will be written together.

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

History-w