从安全角度考虑禁止记录history

ln -s /dev/null .bash_history
			

格式定义

定制.bash_history格式

export HISTSIZE=1000
export HISTFILESIZE=2000
export HISTTIMEFORMAT="%Y-%m-%d-%H:%M:%S "
export HISTFILE="~/.bash_history"
				

看看实际效果

$ history | head
    1  2012-02-27-09:10:45 do-release-upgrade
    2  2012-02-27-09:10:45 vim /etc/network/interfaces
    3  2012-02-27-09:10:45 vi /etc/network/interfaces
    4  2012-02-27-09:10:45 ping www.163.com
				

	提示
	CentOS 可以添加到 /etc/bashrc 这样可以对所有用户起作用 echo 'export HISTTIMEFORMAT="%Y-%m-%d-%H:%M:%S "' >> /etc/bashrc

HISTIGNORE="ls:ll:la:cd:exit:clear:logout"
HISTTIMEFORMAT="[%Y-%m-%d - %H:%M:%S] "
HISTFILE=~/.history
HISTSIZE=50000
SAVEHIST=50000
				

			
# history -cw			
			
			

清楚指定行

			
# history -d 5
			
			

临时关闭历史记录

			
# 关闭
# set +o history

# 恢复
# set -o history
			
			

ln -s /dev/null .mysql_history
			

插入时间点，在~/.bashrc中加入下面命令

$ tail ~/.bashrc
echo `date` >> ~/.mysql_history
			

$ tail ~/.mysql_history
EXPLAIN SELECT * FROM stuff where id=3 \G
EXPLAIN SELECT * FROM stuff where id='3' \G
EXPLAIN SELECT * FROM stuff where id='2' \G
Mon Feb 27 09:15:18 CST 2012
EXPLAIN SELECT * FROM stuff where id='2' and created = '2012-02-01' \G
EXPLAIN SELECT * FROM stuff where id='1' and created = '2012-02-01' \G
EXPLAIN SELECT * FROM stuff where id='3' and created = '2012-02-01' \G
EXPLAIN SELECT * FROM stuff where id='2' and created = '2012-02-01' \G
EXPLAIN SELECT * FROM stuff where id='2' or created = '2012-02-01' \G
EXPLAIN SELECT * FROM stuff where id='2' and created = '2012-02-01' \G
Mon Feb 27 11:48:37 CST 2012