Readline

The GNU Readline library provides a set of functions for use by applications that allow users to edit command lines as they are typed in. Both Emacs and vi editing modes are available. The Readline library includes additional functions to maintain a list of previously-entered command lines, to recall and perhaps reedit those lines, and perform csh-like history expansion on previous commands.

• https://man7.org/linux/man-pages/man3/readline.3.html
• https://tiswww.cwru.edu/php/chet/readline/rltop.html
• 源码: http://git.savannah.gnu.org/cgit/readline.git/tree/
• Readline Cheat Sheet

bind -m keymap 的含义

光标移动快捷键

大小写转换

• alt+u 转大写。
• alt+l 转小写。
• alt+c 转首字母大写。

参考 https://askubuntu.com/a/903481

其他快捷键

• ctrl+_ 撤销上一步。