history 清空历史记录 或 history不记录历史命令

# vi ~/.bash_history

清空里面的记录，并退出当前shell

# exit（一定要退出当前shell）# history1 vi ~/.bash_history 2 history |grep mysql3 clear4 vi ~/.bash_history 5 echo "" > ~/.bash_history 6 vi ~/.bash_history 7 history8 exit9 history#之前的内容被清空！！！

[root@localhost ~]# history1 history2 echo "" > ~/.bash_history 3 history[root@localhost ~]# history -c #也可以清空历史命令[root@localhost ~]# history1 history

history不记录历史命令：

#vi /etc/profile#HISTSIZE=1000HISTSIZE=6 #记录历史命令的条数；HISTSIZE=0为不记录

记得重新载入：

# source /etc/profile