熟悉 Bash 快捷键来提高效率

Bash是GNU计划的一部分，是多数Linux发行版提供的默认Shell。 Linux的精髓就在于命令行的高效，而学习命令行的第一步便是学习如何快速地输入命令。

其实包括Bash在内的多数Linux Shell都是使用一个叫GNU Readline Library的库来接受用户输入。 所以这些快捷键在多数Shell下都适用~

命令编辑

快捷键	描述
Ctrl + a	go to the start of the command line
Ctrl + e	go to the end of the command line
Ctrl + k	delete from cursor to the end of the command line
Ctrl + u	delete from cursor to the start of the command line
Ctrl + w	delete from cursor to start of word (i.e. delete backwards one word)
Ctrl + y	paste word or text that was cut using one of the deletion shortcuts (such as the one above) after the cursor
Ctrl + xx	move between start of command line and current cursor position aand back again
Alt + b	move backward one word (or go to start of word the cursor is currently on)
Alt + f	move forward one word (or go to end of word the cursor is currently on)
Alt + d	delete to end of word starting at cursor (whole word if cursor is at the beginning of word)
Alt + c	capitalize to end of word starting at cursor (whole word if cursor is at the beginning of word)
Alt + u	make uppercase from cursor to end of word
Alt + l	make lowercase from cursor to end of word
Alt + t	swap current word with previous
Ctrl + f	move forward one character
Ctrl + b	move backward one character
Ctrl + d	delete character under the cursor
Ctrl + h	delete character before the cursor
Ctrl + t	swap character under cursor with the previous one

历史命令

快捷键	描述
Ctrl + r	search the history backwards
Ctrl + g	escape from history searching mode
Ctrl + p	previous command in history (i.e. walk back through the command history)
Ctrl + n	next command in history (i.e. walk forward through the command history)
Alt + .	use the last word of the previous command

命令控制

快捷键	描述
Ctrl + l	clear the screen
Ctrl + s	stops the output to the screen (for long running verbose command)
Ctrl + q	allow output to the screen (if previously stopped using command above)
Ctrl + c	terminate the command
Ctrl + z	suspend/stop the command
Ctrl + d	end of input