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)
# history
    1  vi ~/.bash_history 
    2  history |grep mysql
    3  clear
    4  vi ~/.bash_history 
    5  echo "" > ~/.bash_history 
    6  vi ~/.bash_history 
    7  history
    8  exit
    9  history
#之前的内容被清空!!!
[root@localhost ~]# history
    1  history
    2  echo "" > ~/.bash_history 
    3  history
[root@localhost ~]# history -c #也可以清空历史命令
[root@localhost ~]# history
    1  history

 

 history不记录历史命令:

#vi /etc/profile
#HISTSIZE=1000
HISTSIZE=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

 

posted @ 2016-04-23 14:18  bass  阅读(2420)  评论(0编辑  收藏  举报