History clears historical records or history does not record historical commands

# VI ~/.bash_history

Clear the record inside and exit the current shell

# exit (be sure to exit the current shell) # History    1  vi ~/.bash_history     2  |grep mysql    3  clear    4  VI ~/.bash_history     5  echo "" > ~/.bash_history     6  VI ~/.bash_history     7    History 8  Exit    9  history# before the content is emptied!!!

[Email protected] ~]# history    1    2  echo "" > ~/.bash_history     3  history[[ Email protected] ~]# history-c #也可以清空历史命令 [[email protected] ~]# history    1  

History does not record historical commands:

#vi/etc/profile#histsize=1000histsize=6 #记录历史命令的条数; histsize=0 is not recorded

Remember to re-load:

# Source/etc/profile

History clears historical records or history does not record historical commands