如何更改 bash 历史完成以完成已经上线的内容？
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How do I change bash history completion to complete what's already on the line?
提问by blokkie
I found a command a couple of months ago that made my bash history auto-complete on what's already on the line when pressing the up arrow:
几个月前我发现了一个命令，当按下向上箭头时，它使我的 bash 历史记录自动完成已在线的内容：
$ vim fi
Press ↑
按 ↑
$ vim file.py
I'd like to set this up on my new computer, because it saves a lot of time when keeping a big history. The problem is that I can't for the life of me remember where it was mentioned and reading through endless bash references and tutorials unfortunately didn't help either.
我想在我的新电脑上设置这个，因为它在保存大历史时节省了很多时间。问题是我终生无法记住它被提及的地方，不幸的是，阅读无休止的 bash 参考资料和教程也无济于事。
Does anybody know the command?
有人知道命令吗？
回答by ephemient
Probably something like
大概是这样的
# ~/.inputrc "\e[A": history-search-backward "\e[B": history-search-forward
or equivalently,
或等效地，
# ~/.bashrc
if [[ $- == *i* ]]
then
bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'
fi
(the if statement checks for interactive mode)
（if 语句检查交互模式）
Normally, Up and Down are bound to the Readline functions previous-historyand next-historyrespectively. I prefer to bind PgUp/PgDn to these functions, instead of displacing the normal operation of Up/Down.
通常情况下，上下绑定到的ReadLine功能previous-history和next-history分别。我更喜欢将 PgUp/PgDn 绑定到这些函数，而不是取代 Up/Down 的正常操作。
# ~/.inputrc "\e[5~": history-search-backward "\e[6~": history-search-forward
After you modify ~/.inputrc, restart your shell or use Ctrl+X, Ctrl+Rto tell it to re-read ~/.inputrc.
修改后~/.inputrc，重新启动 shell 或使用Ctrl+ X, Ctrl+R告诉它重新读取~/.inputrc.
By the way, if you're looking for relevant documentation:
顺便说一句，如果您正在寻找相关文档：
Bash uses The GNU Readline Libraryfor the shell prompt and history.
Bash 使用GNU Readline 库作为 shell 提示和历史记录。
回答by nate_weldon
Update .inputrc with the following:
使用以下内容更新 .inputrc：
"\C-[OA": history-search-backward
"\C-[[A": history-search-backward
"\C-[OB": history-search-forward
"\C-[[B": history-search-forward
回答by MauricioRobayo
If set enable-keypad onis in your ~/.inputrcas some st (suckless simple terminal) users might, be aware that the arrows keys are in keypad mode. Ubuntu ships with this useful /usr/share/doc/bash/inputrc.arrows:
如果set enable-keypad on您~/.inputrc像某些 st（简单的终端）用户一样，请注意箭头键处于键盘模式。Ubuntu 附带了这个有用的/usr/share/doc/bash/inputrc.arrows：
# This file controls the behaviour of line input editing for
# programs that use the Gnu Readline library.
#
# Arrow keys in keypad mode
#
"\C-[OD" backward-char
"\C-[OC" forward-char
"\C-[OA" previous-history
"\C-[OB" next-history
#
# Arrow keys in ANSI mode
#
"\C-[[D" backward-char
"\C-[[C" forward-char
"\C-[[A" previous-history
"\C-[[B" next-history
#
# Arrow keys in 8 bit keypad mode
#
"\C-M-OD" backward-char
"\C-M-OC" forward-char
"\C-M-OA" previous-history
"\C-M-OB" next-history
#
# Arrow keys in 8 bit ANSI mode
#
"\C-M-[D" backward-char
"\C-M-[C" forward-char
"\C-M-[A" previous-history
"\C-M-[B" next-history
So I'm not sure if you'll need all, but it might not hurt to have in your ~/.inputrc:
所以我不确定你是否需要全部，但在你的~/.inputrc:
# Arrow keys in keypad mode
"\C-[OA": history-search-backward
"\C-[OB": history-search-forward
"\C-[OC": forward-char
"\C-[OD": backward-char
# Arrow keys in ANSI mode
"\C-[[A": history-search-backward
"\C-[[B": history-search-forward
"\C-[[C": forward-char
"\C-[[D": backward-char
This is also on the same topic: My cursor keys do not workand also this xterm: special keys
回答by Benjamin Crouzier
With ohmyzsh, use this in your .zshrc:
随着ohmyzsh，在您使用本.zshrc：
bindkey '^[OA' history-search-backward
bindkey '^[OB' history-search-forward
To reload, source ~/.zshrcor relaunch terminal.
重新加载source ~/.zshrc或重新启动终端。
回答by Convict
You may need to enabled bash completion.
您可能需要启用 bash 完成。
Check
查看
/etc/profile/etc/bash.bashrc~/.bashrc
/etc/profile/etc/bash.bashrc~/.bashrc
to see if any of the above files source /etc/bash_completion. i.e.
看看是否有上述文件来源/etc/bash_completion。IE
. /etc/bash_completion
If /etc/bash___completionis not sourced by any of the above files you will need to add it to one of them.
如果/etc/bash___completion不是上述任何文件的来源，则需要将其添加到其中一个文件中。
If you want all bash users on your machine to have bash completion, source /etc/bash_completionfrom /etc/bash.bashrc.
如果您希望计算机上的所有 bash 用户都具有 bash 完成功能，请/etc/bash_completion从/etc/bash.bashrc.
If it's just you who wants bash completion, source /etc/bash_completionfrom your ~/.bashrc.
如果只是您想要 bash 完成，请/etc/bash_completion从您的~/.bashrc.
