history add 运行时间

add:https://www.cyberciti.biz/faq/unix-linux-bash-history-display-date-time/

echo 'export HISTTIMEFORMAT="%d/%m/%y %T "' >> ~/.bash_profile

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zbash 添加方式
https://unix.stackexchange.com/questions/103398/datetime-stamp-when-running-history-command-in-zsh-shell

Then fc -li 100 works! It shows the recent 100 commands with timestamp :)

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