【linux】History- Linux下定制个性化history记录

　作为Linux管理员，在出现问题的时候，有时候想反查过去某段时间内 那个用户在什么时间执行过什么命令。这个时候就需要用到Linux下面的history功能

作为管理员，希望能将所有的history记录保存自己方便控制的运维主机上面方便同意管理和查阅，不同主机的记录按主机ip分目录存放

管理员可以查阅所有的，但是普通用户只允许创建查阅属于自己的history记录我呢见

#!/usr/bin/env bash 
currentip=$(/usr/sbin/ifconfig |grep ‘inet ‘ |grep -v ‘127.0.0.1‘ |awk ‘{print $2}‘)
historyPath="/devOps/backup/history/"## 不同主机的记录按IP创建不同的目录存放if [ ! -d ${historyPath}${currentip} ] 
then
    mkdir -p ${historyPath}${currentip}
    chmod -R 777 ${historyPath}${currentip}
    chmod a+t ${historyPath}${currentip}fi## history setting ## 区分管理root和普通用户，普通用户只读if [ $UID -ge 500 ]then
    readonly HISTFILE=${historyPath}${currentip}/$USER-$UID.log
    readonly HISTFILESIZE=50000    readonly HISTSIZE=10000    readonly HISTTIMEFORMAT="%F %T `who am i |awk ‘{print $1}‘` `whoami` "
    readonly HISTCONTROL=ignoredups    shopt -s histappend    readonly PROMPT_COMMAND="history -a"else
    HISTFILE=${historyPath}${currentip}/$USER-$UID.log
    HISTFILESIZE=50000
    HISTSIZE=10000
    HISTTIMEFORMAT="%F %T `who am i |awk ‘{print $1}‘` `whoami` "
    HISTCONTROL=ignoredups    shopt -s histappend
    PROMPT_COMMAND="history -a"fi

 1588  2016-09-12 11:23:09 root root tail -f /usr/local/tomcat/logs/dataLog/define.log  |grep MasterBGirlSayHiBoy
 1589  2016-09-12 11:38:00 root root cat /usr/local/tomcat/logs/dataLog/define.log  |grep sendTopicMsg
 1590  2016-09-12 11:39:22 root root cat /usr/local/tomcat/logs/dataLog/define.log  |grep sendTopicMsg |grep ‘"billing":"2"‘
 1591  2016-09-12 11:39:26 root root cat /usr/local/tomcat/logs/dataLog/define.log  |grep sendTopicMsg |grep ‘"billing":"5"‘
 1592  2016-09-12 11:59:27 root root cat /etc/profile.d/history.sh

who am i && whoami