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translating---geekpi
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How To Browse Stack Overflow From Terminal
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======
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A while ago, we have written about [**SoCLI**][1], a python script to search and browse Stack Overflow website from command line. Today, we will discuss about a similar tool named **“how2”**. It is a command line utility to browse Stack Overflow from Terminal. You can query in the plain English as the way you do in [**Google search**][2] and it uses Google and Stackoverflow APIs to search for the given queries. It is free and open source utility written using NodeJS.
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### Browse Stack Overflow From Terminal Using how2
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Since how2 is a NodeJS package, we can install it using Npm package manager. If you haven’t installed Npm and NodeJS already, refer the following guide.
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After installing Npm and NodeJS, run the following command to install how2 utility.
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```
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$ npm install -g how2
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```
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Now let us see how to browse Stack Overflow uisng this program. The typical usage to search through Stack Overflow site using “how2” utility is:
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```
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$ how2 <search-query>
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```
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For example, I am going to search for how to create tgz archive.
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```
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$ how2 create archive tgz
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```
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Oops! I get the following error.
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```
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/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js:59
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Transport.prototype.__proto__ = EventEmitter.prototype;
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^
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TypeError: Cannot read property 'prototype' of undefined
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at Object.<anonymous> (/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js:59:46)
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at Module._compile (internal/modules/cjs/loader.js:654:30)
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at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
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at Module.load (internal/modules/cjs/loader.js:566:32)
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at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
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at Function.Module._load (internal/modules/cjs/loader.js:498:3)
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at Module.require (internal/modules/cjs/loader.js:598:17)
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at require (internal/modules/cjs/helpers.js:11:18)
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at Object.<anonymous> (/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/stream.js:8:17)
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at Module._compile (internal/modules/cjs/loader.js:654:30)
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```
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I may be a bug. I hope it gets fixed in the future versions. However, I find a workaround posted [**here**][3].
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To fix this error temporarily, you need to edit the **transport.js** file using command:
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```
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$ vi /home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js
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```
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The actual path of this file will be displayed in your error output. Replace the above file path with your own. Then find the following line:
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```
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var EventEmitter = process.EventEmitter;
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```
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and replace it with following line:
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```
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var EventEmitter = require('events');
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```
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Press ESC and type **:wq** to save and quit the file.
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Now search again the query.
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```
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$ how2 create archive tgz
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```
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Here is the sample output from my Ubuntu system.
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[![][4]][5]
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If the answer you’re looking for is not displayed in the above output, press **SPACE BAR** key to start the interactive search where you can go through all suggested questions and answers from the Stack Overflow site.
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[![][4]][6]
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Use UP/DOWN arrows to move between the results. Once you got the right answer/question, hit SPACE BAR or ENTER key to open it in the Terminal.
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[![][4]][7]
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To go back and exit, press **ESC**.
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**Search answers for specific language**
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If you don’t specify a language it **defaults to Bash** unix command line and give you immediately the most likely answer as above. You can also narrow the results to a specific language, for example perl, python, c, Java etc.
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For instance, to search for queries related to “Python” language only using **-l** flag as shown below.
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```
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$ how2 -l python linked list
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```
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[![][4]][8]
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To get a quick help, type:
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```
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$ how2 -h
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```
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### Conclusion
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The how2 utility is a basic command line program to quickly search for questions and answers from Stack Overflow without leaving your Terminal and it does this job pretty well. However, it is just CLI browser for Stack overflow. For some advanced features such as searching most voted questions, searching queries using multiple tags, colored interface, submitting a new question and viewing questions stats etc., **SoCLI** is good to go.
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And, that’s all for now. Hope this was useful. I will be soon here with another useful guide. Until then, stay tuned with OSTechNix!
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Cheers!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/how-to-browse-stack-overflow-from-terminal/
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作者：[SK][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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选题：[lujun9972](https://github.com/lujun9972)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.ostechnix.com/author/sk/
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[1]:https://www.ostechnix.com/search-browse-stack-overflow-website-commandline/
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[2]:https://www.ostechnix.com/google-search-navigator-enhance-keyboard-navigation-in-google-search/
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[3]:https://github.com/santinic/how2/issues/79
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[4]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[5]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-1.png
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[6]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-2.png
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[7]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-3.png
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[8]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-4.png
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@ -0,0 +1,139 @@
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如何在终端中浏览 Stack Overflow
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======
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前段时间，我们写了一篇关于 [**SoCLI**][1] 的文章，它是一个从命令行搜索和浏览 Stack Overflow 网站的 python 脚本。今天，我们将讨论一个名为 **“how2”** 的类似工具。它是一个命令行程序，可以从终端浏览 Stack Overflow。你可以如你在 [Google 搜索][2]中那样直接用英语查询，然后它会使用 Google 和 Stackoverflow API 来搜索给定的查询。它是使用 NodeJS 编写的免费开源程序。
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### 使用 how2 从终端浏览 Stack Overflow
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由于 how2 是一个 NodeJS 包，我们可以使用 Npm 包管理器安装它。如果你尚未安装 Npm 和 NodeJS，请参考以下指南。
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在安装 Npm 和 NodeJS 后，运行以下命令安装 how2。
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```
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$ npm install -g how2
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```
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现在让我们看下如何使用这个程序浏览 Stack Overflow。使用 “how2” 搜索 Stack Overflow 站点的典型用法是：
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```
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$ how2 <search-query>
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```
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例如，我将搜索如何创建 tgz 存档。
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```
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$ how2 create archive tgz
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```
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哎呀！我收到以下错误。
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```
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/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js:59
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Transport.prototype.__proto__ = EventEmitter.prototype;
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^
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TypeError: Cannot read property 'prototype' of undefined
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at Object.<anonymous> (/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js:59:46)
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at Module._compile (internal/modules/cjs/loader.js:654:30)
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at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
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at Module.load (internal/modules/cjs/loader.js:566:32)
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at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
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at Function.Module._load (internal/modules/cjs/loader.js:498:3)
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at Module.require (internal/modules/cjs/loader.js:598:17)
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at require (internal/modules/cjs/helpers.js:11:18)
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at Object.<anonymous> (/home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/stream.js:8:17)
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at Module._compile (internal/modules/cjs/loader.js:654:30)
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```
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我可能遇到了一个 bug。我希望它在未来版本中得到修复。但是，我在[**这里**][3]找到了一个临时方法。
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要临时修复此错误，你需要使用以下命令编辑 **transport.js**：
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```
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$ vi /home/sk/.nvm/versions/node/v9.11.1/lib/node_modules/how2/node_modules/devnull/transports/transport.js
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```
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此文件的实际路径将显示在错误输出中。用你自己的文件路径替换上述文件路径。然后找到以下行：
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```
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var EventEmitter = process.EventEmitter;
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```
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并用以下行替换它：
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```
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var EventEmitter = require('events');
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```
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按 ESC 并输入 **:wq** 以保存并退出文件。
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现在再次搜索查询。
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```
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$ how2 create archive tgz
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```
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这是我的 Ubuntu 系统的示例输出。
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[![][4]][5]
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如果你要查找的答案未显示在上面的输出中，请按**空格键**键开始交互式搜索，你可以通过它查看 Stack Overflow 站点中的所有建议问题和答案。
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[![][4]][6]
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使用向上/向下箭头在结果之间移动。得到正确的答案/问题后，点击空格键或回车键在终端中打开它。
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[![][4]][7]
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要返回并退出，请按 **ESC**。
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**搜索特定语言的答案**
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如果你没有指定语言，它**默认为 Bash** unix 命令行，并立即为你提供最可能的答案。你还可以将结果缩小到特定语言，例如 perl、python、c、Java 等。
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例如，使用 **-l** 标志仅搜索与 “Python” 语言相关的查询，如下所示。
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```
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$ how2 -l python linked list
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```
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[![][4]][8]
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要获得快速帮助，请输入：
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```
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$ how2 -h
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```
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### 总结
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how2 是一个基本的命令行程序，它可以快速搜索 Stack Overflow 中的问题和答案，而无需离开终端，并且它可以很好地完成这项工作。但是，它只是 Stack overflow 的 CLI 浏览器。对于一些高级功能，例如搜索投票最多的问题，使用多个标签搜索查询，彩色界面，提交新问题和查看问题统计信息等，**SoCLI** 做得更好。
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就是这些了。希望这篇文章有用。我将很快写一篇新的指南。在此之前，请继续关注 OSTechNix！
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干杯!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/how-to-browse-stack-overflow-from-terminal/
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作者：[SK][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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选题：[lujun9972](https://github.com/lujun9972)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.ostechnix.com/author/sk/
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[1]:https://www.ostechnix.com/search-browse-stack-overflow-website-commandline/
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[2]:https://www.ostechnix.com/google-search-navigator-enhance-keyboard-navigation-in-google-search/
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[3]:https://github.com/santinic/how2/issues/79
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[4]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[5]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-1.png
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[6]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-2.png
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[7]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-3.png
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[8]:http://www.ostechnix.com/wp-content/uploads/2018/04/stack-overflow-4.png
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