CentOS 7 - 清除bash history 记录

清除操作 history 记录

当前用户所有输入的命令都被记录在 ~/.bash_history 文件中，为了防止敏感信息泄露，可以执行

history -c && history -w 或 history -c && > ~/.bash_history

命令清除这些历史记录。

关于 history 命令的帮助信息：

$ help history

history: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]
    Display or manipulate the history list.
    
    Display the history list with line numbers, prefixing each modified
    entry with a `*'.  An argument of N lists only the last N entries.
    
    Options:
      -c    clear the history list by deleting all of the entries
      -d offset    delete the history entry at offset OFFSET.
    
      -a    append history lines from this session to the history file
      -n    read all history lines not already read from the history file
      -r    read the history file and append the contents to the history
        list
      -w    write the current history to the history file
        and append them to the history list
    
      -p    perform history expansion on each ARG and display the result
        without storing it in the history list
      -s    append the ARGs to the history list as a single entry
    
    If FILENAME is given, it is used as the history file.  Otherwise,
    if $HISTFILE has a value, that is used, else ~/.bash_history.
    
    If the $HISTTIMEFORMAT variable is set and not null, its value is used
    as a format string for strftime(3) to print the time stamp associated
    with each displayed history entry.  No time stamps are printed otherwise.
    
    Exit Status:
    Returns success unless an invalid option is given or an error occurs.