为什么Bash历史记录中的某些行变为"*"? [英] Why some lines in Bash history become "*"?

问题描述

执行反向搜索后，为什么Bash历史记录中的某些行(如第509和512行以下)变成"*"?

Why some lines (as below line 509 and 512 ) in Bash history become "*", after I execute reverse-i-search?

507  stty -ixon
508  history
509* 
510  echo 10
511  echo 20
512* 
513  ls
514  history
515  stty ixon
516  stty -a
517  stty -h
518  man stty
519  history

推荐答案

星号表示该行已被修改.参见man history.

The star means the line has been modified. See man history.

演示:

在终端提示符下，使用向上箭头键显示上一个命令. 使用退格键删除命令. 使用向下箭头键返回到最后一个提示并输入 历史 修改后的行现在应该在历史记录中显示为行号，后跟一个星号.

From the terminal prompt use the up-arrow key to display a previous command. Delete the command with the backspace key. Use the down-arrow key to return to the last prompt and enter history The modified line should now be displayed in the history as a line number followed by a star.

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