在/etc/profile里面加上这些就够了

vim /etc/profile
if [ ! -d /usr/local/crazy/records/${LOGNAME} ]

then

mkdir -p /usr/local/crazy/records/${LOGNAME}

chmod 300 /usr/local/crazy/records/${LOGNAME}

fi
export HISTORY_FILE="/usr/local/crazy/records/${LOGNAME}/bash_history"
export PROMPT_COMMAND='{ date "+%Y-%m-%d %T ##### $(who am i |awk "{print \$1\" \"\$2\" \"\$5}") #### $(history 1 | { read x cmd; echo "$cmd"; })"; } >>$HISTORY_FILE'

改个权限即可chmod 777 /usr/local/crazy/records

tips：普通用户若有sudo su - 切换root权限，切换前记录在自己名称目录下，切换后记录在root目录下，但记录的都是登陆账户的操作记录

切换前dump，日志记录
[root@localhost /usr/local/crazy/records/chenliang ]# tail -f bash_history
2016-06-16 17:36:29 ##### chenliangpts/3 (124.192.156.166) #### mysqldump -uroot -pESBecs00 kingshard>kingshard.sql

sudo切换后dump，日志记录

[root@localhost /usr/local/crazy/records/root ]# tail -f bash_history
2016-06-16 17:36:12 ##### chenliang pts/3 (124.192.156.166) #### mysqldump -uroot -pESBecs00 kingshard>kingshard.sql3

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