在bash中使用Control-r反向搜索：如何在Cygwin中“重置”搜索？

Question: How do you tell Ctrl+r reverse-i-search to "reset itself" and start searching from the bottom of your history every time?

问题:如何告诉Ctrl + r reverse-i-search“重置自己”并每次从历史记录的底部开始搜索?

Background: When using reverse-i-search in Bash, I always get stuck once it is finished searching up through the history and it cannot find any more matches. Sometimes I hit Esc and re-invoke Ctrl+r a second time, expecting it to start a fresh new search from the bottom of my history. However the "pointer" still seems to be at the previous place it left off in my history.

背景:在Bash中使用reverse-i-search时,一旦完成搜索历史记录并且找不到更多匹配项,我总是卡住。有时我点击Esc并再次重新调用Ctrl + r,期望它从我的历史记录底部开始一个全新的搜索。然而,“指针”似乎仍然存在于我历史上的前一个位置。

The problem is, I usually do not want this behavior. If I hit Esc, and then re-invoke Ctrl+r, I would like that to indicate it should re-start from the bottom again and work its way back up.

问题是,我通常不希望这种行为。如果我点击Esc,然后重新调用Ctrl + r,我希望它表明它应该再次从底部重新启动并重新启动。

Update: I guess I should have mentioned I am using Cygwin on Windows, as none of the so-far mentioned solutions work.

更新:我想我应该提到我在Windows上使用Cygwin,因为到目前为止提到的解决方案都没有。

Update: This question was marked as a potential duplicate question. This question is not a duplicate for the following reasons:

更新:此问题被标记为可能重复的问题。由于以下原因,此问题不重复:

The alternate question does not deal with Cygwin.

替代问题不涉及Cygwin。

The alternate question does not deal with how to reset the search to its initial state (instead it deals with simply going backward in search as well as forward).

替代问题不涉及如何将搜索重置为其初始状态(相反,它只处理搜索和转发中的向后)。

4 个解决方案

#1

I never tried making this the default when hitting Escape, but bash uses readline for input, which accepts Emacs-style keybindings by default, so you can go to the bottom using M-> (usually either by combining Meta/Alt and > or by following the Escape key with >).

我在尝试使用Escape时没有尝试将其设置为默认值,但bash使用readline作为输入,默认情况下接受Emacs样式的键绑定,因此您可以使用M->(通常通过组合Meta / Alt和>或者使用>)跟随Escape键。

If M-> does not work because your terminal does not let you enter that, try ^G (Control and G simultaneously). That is the "cancel" stroke in Emacs and usually works with readline too.

如果M->不起作用,因为您的终端不允许您输入,请尝试^ G(同时控制和G)。这是Emacs中的“取消”笔划,通常也与readline一起使用。

#2

My bash works as you are expecting. Maybe hitting "ctrl+C" instead of "esc" can help.

我的bash按照你的期望工作。也许点击“ctrl + C”而不是“esc”可以提供帮助。

Also, you can search forward using "ctrl+s"

此外,您可以使用“ctrl + s”向前搜索

edit: ctrl+s works if it does not send a "stop" to your terminal, i.e. if "stty -a" gives you "-ixon". You can change it by "stty -ixon". Thanks to @Phil for reminder.

编辑:如果ctrl + s没有向你的终端发送“停止”,即如果“stty -a”给你“-ixon”,则它可以工作。您可以通过“stty -ixon”进行更改。感谢@Phil提醒。

#3

Got a confirmed answer to this question.

得到了这个问题的确认答案。

To reset ctrl-r, the usual emacs key ctrl-g can do. If you want to reverse ctrl-r by one step, instead of working your way up from the bottom again, you can use ctrl-s . The trick is ctrl-s is also used to pause the terminal. So you would need assign that to another key. For example, the following will set pause to ctrl-w (and keep "resume" with ctrl-q).

要重置ctrl-r,通常的emacs键ctrl-g可以执行。如果你想将ctrl-r反向一步,而不是再次从底部向上,你可以使用ctrl-s。诀窍是ctrl-s也用于暂停终端。所以你需要将它分配给另一个键。例如,以下内容将暂停设置为ctrl-w(并使用ctrl-q保持“resume”)。

$ stty STOP ^w

Alternatively, you can also totally disable XON/XOFF (resume/pause) flow control characters by

或者,您也可以完全禁用XON / XOFF(恢复/暂停)流控制字符

$ stty -ixon -ixoff

This will also free-up ctrl-s. To re-enable pause/resume, you can do

这也将释放ctrl-s。要重新启用暂停/恢复,您可以这样做

$ stty ixon ixoff

#4

M-> ... moves to end of history
M-< ... moves to start of history

Your left alt key is most likely your Meta key.

你的左Alt键很可能是你的Meta键。

Man readline for more readline directives.

man readline更多readline指令。

#1