[root@WangGaoli ~]# grep 'HISTTIMEFORMAT' .bashrc
export HISTTIMEFORMAT='%F %T '
[root@WangGaoli ~]# source .bashrc
[root@WangGaoli ~]# history
962 2018-07-31 14:10:16 history
963 2018-07-31 14:10:30 vim .bashrc
964 2018-07-31 14:10:35 source .bashrc
history添加时间标记
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