1、vim /etc/bashrc
export HISTORY_FILE=/var/log/`whoami`_`date '+%y-%m-%d'`.log
readonly PROMPT_COMMAND='{ date "+%y-%m-%d %T ### $(who am i |awk "{print \$1\" \"\$2\" \"\$5}") ### 
$(history 1 | { read x cmd; echo "$cmd"; })"; } >> $HISTORY_FILE'
或者
export HISTORY_FILE=/var/log/`whoami`_`date '+%y-%m-%d'`.log
readonly PROMPT_COMMAND='{ msg=$(history 1 | { read x y; echo $y; }); echo $(who am i):[`pwd`]"$msg"; } >> 
$HISTORY_FILE'


2、vim /etc/profile
export HISTTIMEFORMAT="%F %T `whoami` "

1和2一起用格式会重复