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translated/tech/20200119 How to Set or Change Timezone in Ubuntu Linux -Beginner-s Tip.md → published/20200119 How to Set or Change Timezone in Ubuntu Linux -Beginner-s Tip.md
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@ -1,35 +1,33 @@
[#]: collector: (lujun9972)
[#]: translator: (robsean)
[#]: reviewer: ( )
[#]: publisher: ( )
[#]: url: ( )
[#]: reviewer: (wxy)
[#]: publisher: (wxy)
[#]: url: (https://linux.cn/article-11838-1.html)
[#]: subject: (How to Set or Change Timezone in Ubuntu Linux [Beginner’s Tip])
[#]: via: (https://itsfoss.com/change-timezone-ubuntu/)
[#]: author: (Abhishek Prakash https://itsfoss.com/author/abhishek/)
如何在 Ubuntu Linux 中设置或更改时区 [初学者技巧]
如何在 Ubuntu Linux 中设置或更改时区
======
[当你安装 Ubuntu 时][1]，它要求你设置时区。如果你选择一个错误的时区，或者你移动到世界的一些其它地方，你可以很容易地在以后更改它。
[你安装 Ubuntu 时][1]，它会要求你设置时区。如果你选择一个错误的时区，或者你移动到世界的一些其它地方，你可以很容易地在以后更改它。
### 如何在 Ubuntu 和其它 Linux 发行版中更改时区
这里有两种方法来更改 Ubuntu 中的时区。你可以使用图形化设置或在终端中使用 timedatectl 命令。你也可以直接更改 /etc/timezone 文件，但是我不建议这样做。
这里有两种方法来更改 Ubuntu 中的时区。你可以使用图形化设置或在终端中使用 `timedatectl` 命令。你也可以直接更改 `/etc/timezone` 文件，但是我不建议这样做。
在这篇初学者教程中，我将向你展示图形化和终端两种方法：
* [通过 GUI 更改 Ubuntu 中的时区][2] (适合桌面用户)
* [通过命令行更改 Ubuntu 中的时区][3] (桌面和服务器都工作)
* [通过 GUI 更改 Ubuntu 中的时区][2] （适合桌面用户）
* [通过命令行更改 Ubuntu 中的时区][3] （桌面和服务器都工作）
![][4]
#### 方法 1: 通过终端更改 Ubuntu 时区
[Ubuntu][5] 或一些使用 systemd 的其它发行版可以在 Linux 终端中使用 timedatectl 命令来设置时区。
[Ubuntu][5] 或一些使用 systemd 的其它发行版可以在 Linux 终端中使用 `timedatectl` 命令来设置时区。
你可以使用没有任何参数的 timedatectl 命令来检查当前是日期和时区设置：
你可以使用没有任何参数的 `timedatectl` 命令来检查当前是日期和时区设置：
```
[email protected]:~$ timedatectl
@ -44,9 +42,9 @@ systemd-timesyncd.service active: yes
正如你在上面的输出中所看，我的系统使用 Asia/Kolkata 。它也告诉我现在比世界时早 5 小时 30 分钟。
为在 Linux 中设置时区，你需要知道准确的时区。你必需使用时区的正确的格式 (时区格式是 大陆/城市)。
为在 Linux 中设置时区，你需要知道准确的时区。你必需使用时区的正确的格式 (时区格式是洲/城市)。
为获取时区列表，使用 _timedatectl_ 命令的 _list-timezones_ 参数:
为获取时区列表，使用 `timedatectl` 命令的 `list-timezones` 参数:
```
timedatectl list-timezones
@ -56,9 +54,9 @@ timedatectl list-timezones
![Timezones List][6]
你可以使用向上箭头和向下箭头或 PgUp 和 PgDown 键来在页面之间移动。
你可以使用向上箭头和向下箭头或 `PgUp` 和 `PgDown` 键来在页面之间移动。
你也可以 grep 输出，并搜索你的时区。例如，假如你正在寻找欧洲的时区，你可以使用：
你也可以 `grep` 输出，并搜索你的时区。例如，假如你正在寻找欧洲的时区，你可以使用：
```
timedatectl list-timezones | grep -i europe
@ -72,7 +70,7 @@ timedatectl set-timezone Europe/Paris
它虽然不显示任何成功信息，但是时区会立即更改。你不需要重新启动或注销。
记住，虽然你不需要成为 root 用户，并且对命令使用 sudo ，但是你的账户仍然需要拥有管理器权限来更改时区。
记住，虽然你不需要成为 root 用户并对命令使用 `sudo`，但是你的账户仍然需要拥有管理器权限来更改时区。
你可以使用 [date 命令][7] 来验证更改的时间好时区：
@ -83,7 +81,7 @@ Sat Jan 18 13:56:26 CET 2020
#### 方法 2: 通过 GUI 更改 Ubuntu 时区
按下 super 键 (Windows 键) ，并搜索设置：
按下 `super` 键 (Windows 键) ，并搜索设置：
![Applications Menu Settings][8]
@ -91,7 +89,7 @@ Sat Jan 18 13:56:26 CET 2020
![Go to Settings -> Details][9]
在详细信息中，你将在左侧边栏中找到 日期和时间 。在这里，你应该关闭自动时区选项(如果它已经被启用)，然后在时区上单击：
在详细信息中，你将在左侧边栏中找到“日期和时间”。在这里，你应该关闭自动时区选项（如果它已经被启用），然后在时区上单击：
![In Details -> Date & Time, turn off the Automatic Time Zone][10]
@ -99,7 +97,7 @@ Sat Jan 18 13:56:26 CET 2020
![Select a timezone][11]
在选择新的时区后，除了关闭这个地图后，你不必做任何事情。不需要注销或 [关闭 Ubuntu][12] 。
在选择新的时区后，除了关闭这个地图后，你不必做任何事情。不需要注销或 [关闭 Ubuntu][12]。
我希望这篇快速教程能帮助你在 Ubuntu 和其它 Linux 发行版中更改时区。如果你有问题或建议，请告诉我。
@ -110,7 +108,7 @@ via: https://itsfoss.com/change-timezone-ubuntu/
作者：[Abhishek Prakash][a]
选题：[lujun9972][b]
译者：[robsean](https://github.com/robsean)
校对：[校对者ID](https://github.com/校对者ID)
校对：[wxy](https://github.com/wxy)
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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sources/talk/20200131 How bacteria could run the Internet of Things.md Normal file
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[#]: collector: (lujun9972)
[#]: translator: ( )
[#]: reviewer: ( )
[#]: publisher: ( )
[#]: url: ( )
[#]: subject: (How bacteria could run the Internet of Things)
[#]: via: (https://www.networkworld.com/article/3518413/how-bacteria-could-run-the-internet-of-things.html)
[#]: author: (Patrick Nelson https://www.networkworld.com/author/Patrick-Nelson/)
How bacteria could run the Internet of Things
======
The Internet of Bio-Nano Things (IoBNT) would use certain kinds of bacteria, which scientists think has the attributes needed to make effective sensor networks.
Thinkstock
Biologically created computing devices could one day be as commonplace as today’s microprocessors and microchips, some scientists believe. Consider DNA, the carrier of genetic information and the principal component of chromosomes; it's showing promise [as a data storage medium][1].
A recent study ([PDF][2]) suggests taking matters further and using microbes to network and communicate at nanoscale. The potential is highly attractive for the Internet of Things (IoT), where concealability and unobtrusiveness may be needed for the technology to become completely ubiquitous.
Advantages to an organic version of IoT include not only the tiny size but also the autonomous nature of bacteria, which includes inherent propulsion. There’s “an embedded, natural propeller motor,” the scientists from Queen Mary University in London explain of the swimming functions microbes perform.
[][3]
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At this point, research into the Internet of Bio-Nano Things (IoBNT) is at an early stage, and the Queen Mary University researchers are predominantly explaining how similarities between bacteria and computing could be exploited. But the study is intriguing.
"The microbes share similarities with components of typical computer IoT devices," wrote Raphael Kim and Stefan Posland in their [paper][2] published on the subject. “This presents a strong argument for bacteria to be considered as a living form of Internet of Things (IoT) device.”
Environmental IoT is one area they say could benefit. In smart cities, for example, bacteria could be programmed to sense for pollutants. Microbes have good chemical-sensing functions and could turn out to work better than electronic sensors. In fact, the authors say that microbes share some of the same sensing, actuating, communicating and processing abilities that the computerized IoT has.
In the case of sensing and actuating, bacteria can detect chemicals, electromagnetic fields, light, mechanical stress and temperature — just what’s required in a traditional printed circuit board-based sensor. Plus, the microbes respond. They can produce colored proteins, for example. And not only that, they respond in a more nuanced way compared to the chip-based sensors. They can be more sensitive, as one example.
[The time of 5G is almost here][4]
The aforementioned DNA, built into bacteria, functions as a control unit, both for processing and storing data. Genomic DNA would contain the instructions for some functioning, and plasmids — which is another form of DNA related to how genes get into organisms — customize process functions through gene addition and subtraction.
Networking is also addressed. Transceivers are also in bacterial IoT, the team says. The importing and exporting of molecules act as a form of signaling pathway, and a DNA exchange between two cells can take place. That’s called “molecular communication” and is described as a bacterial nanonetwork. Digital-to-DNA and back to DNA again is a DNA-related area currently showing promise.
Bacteria should become a “substrate to build a biological version of the Internet of Things,” the scientists say. Interestingly, similar to how traditional IoT has been propelled forward by tech hobbyists mucking around with Arduino microcontrollers and Raspberry Pi educational mini-computers, Kim and Posland reckon it will be do-it-yourself biology that will kick-start IoBNT. They point out that easily obtainable educational products like [the Amino Labs kit][5] already allow the generation of specific colors from bacteria, for example.
“Currently, tools and techniques to run small-scale experiments with micro-organisms are widely available to the general public, through various channels, including maker spaces.”
The team also suggest that hypothetically the “gamification of bacteria” could become a part of the experimentation. Biotic games exist. The researchers propose “to utilize the DIY biology movement and gamification techniques to leverage user engagement and introduction to bacteria.”
Join the Network World communities on [Facebook][6] and [LinkedIn][7] to comment on topics that are top of mind.
--------------------------------------------------------------------------------
via: https://www.networkworld.com/article/3518413/how-bacteria-could-run-the-internet-of-things.html
作者：[Patrick Nelson][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.networkworld.com/author/Patrick-Nelson/
[b]: https://github.com/lujun9972
[1]: https://www.networkworld.com/article/3268646/dna-data-storage-closer-to-becoming-reality.html
[2]: https://arxiv.org/ftp/arxiv/papers/1910/1910.01974.pdf
[3]: https://www.networkworld.com/article/3440100/take-the-intelligent-route-with-consumption-based-storage.html?utm_source=IDG&utm_medium=promotions&utm_campaign=HPE21620&utm_content=sidebar ( Take the Intelligent Route with Consumption-Based Storage)
[4]: https://www.networkworld.com/article/3354477/mobile-world-congress-the-time-of-5g-is-almost-here.html
[5]: https://amino.bio/
[6]: https://www.facebook.com/NetworkWorld/
[7]: https://www.linkedin.com/company/network-world