每天一命令之history
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history
DESCRIPTION
DESCRIPTION Many programs read input from the user a line at a time. The GNU History library is able to keep track of those lines, associate arbitrary data with each line, and utilize information from previous lines in composing new ones.
OPTIONS
-c 清空当前历史命令 clear the history list by deleting all of the entries -d offset 删除历史记录中第offset个命令 delete the history entry at position OFFSET. Negative offsets count back from the end of the history list -N: 显示历史记录中最近的N个记录; -a:将历史命令缓冲区中命令写入历史命令文件中; -r:将历史命令文件中的命令读入当前历史命令缓冲区; -w:将当前历史命令缓冲区命令写入历史命令文件中; -n<filename>:读取指定文件
完全清除命令执行操作的历史记录
1.清理历史记录(只是清理了表层,可在.bash_history找到回) history -c 2.清理记录历史的记录文件内容 echo " " > .bash_history echo > ~/.bash_history