在 irb 的命令行上导航

Question

我看过用户运行 irb 的截屏视频，当他们写文本时，他们跳到行的开头/结尾和单词的开头/结尾。用于执行此操作的按键是什么？它是否取决于正在使用的外壳？

Answer 1

这些是 readline 快捷方式。我经常使用的一些快捷方式：

Ctrl + a => End of line
Ctrl + e => Start of line
Ctrl + l => Clear screen
Ctrl + k => Cut text from cursor position till end of line
Ctrl + u => Cut text from cursor position till start of line
Ctrl + y => Paste text that was cut using above two shortcuts
Ctrl + d => Delete a letter after cursor
Ctrl + h => Delete a letter before cursor
Meta + d => Delete the word after cursor
Meta + f => Move cursor one word forward
Meta + b => Move cursor one word backwards.

Answer 2

Ctrl + A => Move to beginning of line
Ctrl + E => Move to end of line 

这些是 readline 命令

这是一个备忘单，您可能会发现一般情况下有帮助