bash 如何清除/删除终端中的当前行？

How do I clear/delete the current line in terminal?

提问by triad

If I'm using terminal and typing in a line of text for a command, is there a hotkey or any way to clear/delete that line?

如果我正在使用终端并为命令输入一行文本，是否有热键或任何方法来清除/删除该行？

For example, if my current line/command is something really long like:

例如，如果我当前的行/命令很长，例如：

> git log --graph --all --blah..uh oh i want to cancel and clear this line <cursor is here now>

Is there a hotkey or command to go from the above to:

是否有热键或命令可以从上面转到：

>

?

?

Usually I will press the ↓key, and if my current line is a brand new one on the history, that will clear it. But if I'm going through my command history via the ↑key and start editing or using those commands, ↓will only change the prompt to the next newest command in history, so it doesn't work here unless I press ↓multiple times.

通常我会按这个↓键，如果我当前的一行是历史上的一个全新的，那将清除它。但是，如果我通过↑键查看我的命令历史记录并开始编辑或使用这些命令，↓只会将提示更改为历史记录中的下一个最新命令，因此除非我↓多次按下，否则它在这里不起作用。

回答by kev

You can use Ctrl+Uto clear up to the beginning.

您可以使用Ctrl+U清除到开头。

You can use Ctrl+Wto delete just a word.

您可以使用Ctrl+W删除一个单词。

You can also use Ctrl+Cto cancel.

您也可以使用Ctrl+C取消。

If you want to keep the history, you can use Alt+Shift+#to make it a comment.

如果你想保留历史记录，您可以使用Alt+ Shift+ #，使之成为注释。

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_{Bash Emacs Editing Mode Cheat Sheet}

_{Bash Emacs 编辑模式备忘单}

回答by J4cK

Just to summarise all the answers:

总结一下所有的答案：

• Clean up the line: You can use Ctrl+Uto clear up to the beginning.
• Clean up the line: Ctrl+ECtrl+Uto wipe the current line in the terminal
• Clean up the line: Ctrl+ACtrl+Kto wipe the current line in the terminal
• Cancel the current command/line: Ctrl+C.
• Recall the deleted command: Ctrl+Y(then Alt+Y)
• Go to beginning of the line: Ctrl+A
• Go to end of the line: Ctrl+E
• Remove the forward words for example, if you are middle of the command: Ctrl+K
• Remove characters on the left, until the beginning of the word: Ctrl+W
• To clear your entire command prompt: Ctrl+ L
• Toggle between the start of line and current cursor position: Ctrl+ XX

• 清理行：您可以使用Ctrl+U清理到开头。
• 清理线：Ctrl+ ECtrl+U擦拭当前行终端
• 清理线：Ctrl+ ACtrl+K擦拭当前行终端
• 取消当前的命令行/行：Ctrl+ C。
• 调用删除的命令：Ctrl+ Y（然后是Alt+ Y）
• 转到行首：Ctrl+A
• 转到行尾：Ctrl+E
• 例如，如果您在命令中间，则删除前向词：Ctrl+K
• 删除左边的字符，直到单词的开头：Ctrl+W
• 清除整个命令提示符：Ctrl+L
• 在行首和当前光标位置之间切换：Ctrl+XX

回答by tharunkumar

I have the complete shortcuts list:

我有完整的快捷方式列表：

1. Ctrl+aMove cursor to start of line
2. Ctrl+eMove cursor to end of line
3. Ctrl+bMove back one character
4. Alt+bMove back one word
5. Ctrl+fMove forward one character
6. Alt+fMove forward one word
7. Ctrl+dDelete current character
8. Ctrl+wCut the last word
9. Ctrl+kCut everything after the cursor
10. Alt+dCut word after the cursor
11. Alt+wCut word before the cursor
12. Ctrl+yPaste the last deleted command
13. Ctrl+_Undo
14. Ctrl+uCut everything before the cursor
15. Ctrl+xxToggle between first and current position
16. Ctrl+lClear the terminal
17. Ctrl+cCancel the command
18. Ctrl+rSearch command in history - type the search term
19. Ctrl+jEnd the search at current history entry
20. Ctrl+gCancel the search and restore original line
21. Ctrl+nNext command from the History
22. Ctrl+pprevious command from the History

1. Ctrl+a将光标移动到行首
2. Ctrl+e将光标移动到行尾
3. Ctrl+b向后移动一个字符
4. Alt+ 后b移一个字
5. Ctrl+f向前移动一个字符
6. Alt+f向前移动一个字
7. Ctrl+d删除当前角色
8. Ctrl+w删掉最后一句话
9. Ctrl+k剪切光标后的所有内容
10. Alt+d剪切光标后的单词
11. Alt+w剪切光标前的单词
12. Ctrl+y粘贴上次删除的命令
13. Ctrl+_撤消
14. Ctrl+u剪切光标前的所有内容
15. Ctrl+xx在第一个和当前位置之间切换
16. Ctrl+l清除终端
17. Ctrl+c取消命令
18. Ctrl+r历史搜索命令 - 输入搜索词
19. Ctrl+j在当前历史条目处结束搜索
20. Ctrl+g取消搜索恢复原行
21. Ctrl+n历史记录中的下一个命令
22. Ctrl+p历史记录中的上一个命令

回答by Spyros Mandekis

Ctrl+A, Ctrl+Kto wipe the current line in the terminal. You can then recall it with Ctrl+Yif you need.

Ctrl+ A, Ctrl+K擦除终端中的当前行。如果需要，您可以使用Ctrl+调用它Y。

回答by bluTaz

or if your using vi mode, hit Escfollowed by cc

或者，如果你使用vi模式，命中Esc之后cc

to get back what you just erased, Escand then p:)

取回您刚刚删除的内容，Esc然后p:)

回答by Muhammet Can

I'm not sure if you love it but I use Ctrl+A(to go beginning the line) and Ctrl+K(to delete the line) I was familiar with these commands from emacs, and figured out them accidently.

我不确定你是否喜欢它，但我使用Ctrl+ A（开始行）和Ctrl+ K（删除行）我熟悉 emacs 中的这些命令，并且偶然发现了它们。

回答by Andrey Starodubtsev

An alternative to Ctrl+A, Ctrl+Kis Ctrl+E, Ctrl+U.

Ctrl+ A, Ctrl+的替代方法K是Ctrl+ E, Ctrl+ U。

回答by Cyrus

• Ctrl+u: moveup to the beginning of your line to a ring buffer
• Ctrl+k: moveup to the end of your line to a ring buffer

• Ctrl+w: movecharacters and (multiple) words left from your cursor to a ring buffer

• Ctrl+y: insert last entry from your ring buffer and then you can use Alt+yto rotate through your ring buffer. Press multiple times to continue to "previous" entry in ring buffer.

• Ctrl+ u：向上移动到行首到环形缓冲区
• Ctrl+ k：向上移动到行尾到环形缓冲区

• Ctrl+ w:将光标左侧的字符和（多个）单词移动到环形缓冲区

• Ctrl+ y：从您的环形缓冲区插入最后一个条目，然后您可以使用Alt+y来旋转您的环形缓冲区。多次按下以继续到环形缓冲区中的“上一个”条目。

回答by Daniel

CTRL+Rand start typing to search for previous commands in history. Will show full lines.
CTRL+Ragain to cycle.

CTRL+R并开始键入以搜索历史记录中以前的命令。将显示完整的线条。
CTRL+R再次循环。

回答by Benjamin W.

To delete the whole line no matter where the cursor is, you can use the kill-whole-linecommand, but it is unbound by default. It can be bound to, for example, Ctrl+Alt+Kby inserting

无论光标在哪里，都可以删除整行，可以使用该kill-whole-line命令，但默认是未绑定的。它可以，例如，被绑定Ctrl+ Alt+K由插入

"\e\C-k": kill-whole-line

into your Readline init file (conventionally ~/.inputrc).

进入你的 Readline init 文件（通常是~/.inputrc）。

Various remarks:

各种备注：

• To avoid accidentally re-assigning a key sequence that is already in use for something else, you can check all your bindings with bind -P. Check for the suggested binding with

  bind -P | grep '\e\C-k'
  

• The Readline init file name is is taken from the shell variable INPUTRC. If it is unset, the default is ~/.inputrc, or (if that doesn't exist) /etc/inputrc. Notice that if you have ~/.inputrc, /etc/inputrcwill be ignored.
• To reload your Readline init file, you can use Ctrl+XCtrl+R.
• Links to relevant manual sections:
  • Readline Init File
  • Readline killing and yanking commands
  • The bindbuiltin

• 为避免意外地重新分配已用于其他用途的键序列，您可以使用bind -P. 检查建议的绑定

  bind -P | grep '\e\C-k'
  

• Readline init 文件名取自 shell 变量INPUTRC。如果未设置，则默认为~/.inputrc, or (如果不存在) /etc/inputrc。请注意，如果您有~/.inputrc,/etc/inputrc将被忽略。
• 要重新加载您的 Readline init 文件，您可以使用Ctrl+ XCtrl+ R。
• 相关手册部分的链接：
  • Readline 初始化文件
  • Readline 杀死和 yanking 命令
  • 该bind内置