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geekpi
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[#]: subject: "Record your terminal session with Asciinema"
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[#]: via: "https://opensource.com/article/22/1/record-terminal-session-asciinema"
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[#]: author: "Seth Kenlon https://opensource.com/users/seth"
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[#]: collector: "lujun9972"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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Record your terminal session with Asciinema
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======
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Show don't tell with Asciinema, an open source terminal session
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recorder.
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![4 different color terminal windows with code][1]
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Support calls are important and often satisfying in the end, but the act of clear communication can be arduous for everyone involved. If you've ever been on a support call, you've probably spent several minutes spelling out even the shortest commands and explaining in detail where the spaces and returns fall. While it's often easier to just seize control of a user's computer, that's not really the best way to educate. What you might try instead is sending a user a screen recording, but one that they can copy commands from and paste into their own terminal.
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Asciinema is an open source terminal session recorder. Similar to the `script` and `scriptreplay` commands, Asciinema records exactly what your terminal displays. It saves your "movie" recording to a text file and then replays it on demand. You can upload your movie to Asciinema.org and share them just as you would any other video on the internet, and you can even embed your movie into a webpage.
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### Install Asciinema
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On Linux, you can install Asciinema using your package manager.
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On Fedora, CentOS, Mageia, or similar:
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```
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`$ sudo dnf install asciinema`
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```
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On Debian, Linux Mint, or similar:
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```
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`$ sudo apt install asciinema`
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```
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On macOS, you can install using Homebrew:
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```
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`$ sudo brew install asciinema`
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```
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On BSD and any other platform using [Pkgsrc][2]:
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```
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$ cd /usr/pkgsrc/misc/py-asciinema
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$ sudo bmake install clean
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```
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### Making movies out of text
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To start recording with Asciinema, you use the `rec` subcommand:
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```
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$ asciinema rec mymovie.cast
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asciinema: recording asciicast to mymovie.cast
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asciinema: press <ctrl-d> or type "exit" when you're done
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```
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Some friendly output alerts you that you're recording, and it tells you how to stop: Press **Ctrl+D** or just type `exit`.
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Everything you do in your terminal while Asciinema is active gets recorded. This includes input, output, errors, awkward pauses, mistakes, or successes. If you see it in your terminal during recording, it makes the cut.
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When you're finished demonstrating how the terminal works, press **Ctrl+D** or type `exit` to stop the recording.
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In this example, the resulting file, `mymovie.cast` is a collection of timestamps and actions that serve as a script (in the sense of a movie script) for the playback mechanism.
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```
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{"version": 2, "width": 139, "height": 36, "timestamp": 1641457358, "env": {"SHELL": "/bin/bash", "TERM": "xterm-256color"}}
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[0.05351, "o", "\u001b]0;seth:~\u0007"]
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[0.05393, "o", "\u001b[1;31m$ \u001b[00m"]
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[1.380059, "o", "e"]
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[1.443823, "o", "c"]
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[1.514674, "o", "h"]
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[1.595238, "o", "o"]
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[1.789562, "o", " "]
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[2.09658, "o", "\""]
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[2.19683, "o", "h"]
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[2.403994, "o", "e"]
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[2.466784, "o", "l"]
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[2.711183, "o", "lo"]
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[3.120852, "o", "\""]
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[3.427886, "o", "\r\nhello\r\n"]
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[...]
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```
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If you've made a mistake, you can cut the mistake by removing the lines recreating the error. Should you find yourself making lots of edits or belaboring long pauses during the recording, you can install and use the [asciinema-edit][3] utility, which can trim out blocks of "footage" by timestamps of your definition, or by eliminating idle time.
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### Playing an Asciinema movie
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You can playback your Asciinema using the `play` subcommand:
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```
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`$ asciinema play mymovie.cast`
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```
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This takes over your terminal session and makes it into the nearest equivalent of the Silver Screen as it's likely ever to be (aside from that time you watched Star Wars in ASCII over `telnet`). Your text-based movie plays—demonstrating for your users exactly how a complex task gets done. Of course, the _actual_ commands getting played don't actually execute. This isn't a shell script in action, so even though you may have created a file `hello.txt` in your movie, there won't be a new `hello.txt` after playback. This is just for show.
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And yet it's more than just a show. You can pause Asciinema movies, select the text you see on the screen and paste it into an active terminal to run the command. Asciinema is useful documentation. It shows users how to do a task, and it allows them to copy and paste to ensure accuracy.
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### Upload your Asciinema movie
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No Asciinema movie has yet reached a blockbuster status, but you can upload yours to Asciinema.org and share it with the world nevertheless.
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```
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`$ asciinema upload mymovie.cast`
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```
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If you're used to YouTube upload times, you'll be pleasantly surprised by how quickly Asciinema movies transfer. A `.cast` file is usually only a few kilobytes, or at the most a few megabytes, so the upload is nearly instantaneous. You don't need an account to share your movie, but all unclaimed movies get deleted after seven days. To preserve your masterpiece, you can open an account on Asciinema and then sit back and wait for the Academy to call.
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### Asciinema as documentation
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Asciinema is a great way to demonstrate even the most basic of concepts. Because it retains the ability to copy and paste code from the recording, provides the ability to pause and play on-demand, and is completely accurate in what it portrays, it's not just as good as a screen recording. It's much, much better. Whether you use it to show off your terminal skills to your friends or whether you use it to educate colleagues and students, Asciinema is an invaluable, social, and accessible tool.
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/22/1/record-terminal-session-asciinema
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作者：[Seth Kenlon][a]
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选题：[lujun9972][b]
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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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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://opensource.com/users/seth
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[b]: https://github.com/lujun9972
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[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/freedos.png?itok=aOBLy7Ky (4 different color terminal windows with code)
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[2]: https://opensource.com/article/19/11/pkgsrc-netbsd-linux
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[3]: https://github.com/cirocosta/asciinema-edit
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@ -0,0 +1,163 @@
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[#]: subject: "Record your terminal session with Asciinema"
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[#]: via: "https://opensource.com/article/22/1/record-terminal-session-asciinema"
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[#]: author: "Seth Kenlon https://opensource.com/users/seth"
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[#]: collector: "lujun9972"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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用 Asciinema 记录你的终端会话
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======
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用开源终端会话记录器 Asciinema 演示。
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![4 different color terminal windows with code][1]
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支持电话是很重要的，而且最后往往是令人满意的，但明确的沟通行为对每个参与的人来说都是艰巨的。如果你曾经参加过支持电话，你可能已经花了好几分钟拼出了最短的命令，并详细解释了空格和回车的位置。虽然直接夺取用户电脑的控制权往往更容易，但这并不是真正的教育的最佳方式。你可以尝试向用户发送一个屏幕记录，但是他们可以复制命令并粘贴到自己的终端。
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Asciinema 是一个开源的终端会话记录器。与 `script` 和 `scriptreplay` 命令类似，Asciinema 准确记录了你的终端显示。它将你的“电影”记录保存到一个文本文件中，然后根据需要进行重放。你可以把你的电影上传到 Asciinema.org，就像你在互联网上分享任何其他视频一样，你甚至可以把你的电影嵌入到网页中。
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### 安装 Asciinema
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在 Linux 上，你可以使用你的包管理器安装 Asciinema。
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在 Fedora、CentOS、Mageia 或类似系统上：
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```
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`$ sudo dnf install asciinema`
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```
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在 Debian、Linux Mint 或类似系统上：
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```
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`$ sudo apt install asciinema`
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```
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在 macOS 上，你可以用 Homebrew 安装：
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```
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`$ sudo brew install asciinema`
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```
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在 BSD 和任何其他平台上使用 [Pkgsrc][2]：
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```
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$ cd /usr/pkgsrc/misc/py-asciinema
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$ sudo bmake install clean
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```
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### 从文本中制作电影
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要用 Asciinema 开始录制，你可以使用 `rec` 子命令：
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```
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$ asciinema rec mymovie.cast
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asciinema: recording asciicast to mymovie.cast
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asciinema: press <ctrl-d> or type "exit" when you're done
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```
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一些友好的输出提醒你，你正在录制，并告诉你如何停止。按 **Ctrl+D** 或直接输入 `exit`。
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当 Asciinema 处于活动状态时，你在终端所做的一切都会被记录下来。这包括输入、输出、错误、尴尬的停顿、错误或成功。如果你在录制过程中在你的终端中看到它，它会被剪辑。
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当你演示完终端如何工作时，按 **Ctrl+D** 或输入 `exit` 来停止记录。
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在这个例子中，产生的文件 `mymovie.cast` 是一个时间戳和动作的集合，作为播放机制的脚本（在电影脚本的意义上）。
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```
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{"version": 2, "width": 139, "height": 36, "timestamp": 1641457358, "env": {"SHELL": "/bin/bash", "TERM": "xterm-256color"}}
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[0.05351, "o", "\u001b]0;seth:~\u0007"]
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[0.05393, "o", "\u001b[1;31m$ \u001b[00m"]
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[1.380059, "o", "e"]
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[1.443823, "o", "c"]
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[1.514674, "o", "h"]
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[1.595238, "o", "o"]
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[1.789562, "o", " "]
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[2.09658, "o", "\""]
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[2.19683, "o", "h"]
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[2.403994, "o", "e"]
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[2.466784, "o", "l"]
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[2.711183, "o", "lo"]
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[3.120852, "o", "\""]
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[3.427886, "o", "\r\nhello\r\n"]
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[...]
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```
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如果你犯了一个错误，你可以通过删除重现错误的行来去除这个错误。如果你发现自己在录制过程中做了很多编辑或冗长的停顿，你可以安装并使用 [asciinema-edit][3] 工具，它可以通过你定义的时间戳或消除空闲时间来剪掉这些“镜头”片段。
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### 播放 Asciinema 电影
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你可以使用 `play` 子命令播放你的 Asciinema：
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```
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`$ asciinema play mymovie.cast`
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```
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这将接管你的终端会话，并使其成为最接近银幕的形式（除了那次你通过 `telnet` 观看 ASCII 格式的星球大战）。你的基于文本的电影播放，向你的用户展示一个复杂的任务是如何完成的。当然，播放的_实际_命令并不真正执行。这不是一个正在运行的 shell 脚本，所以即使你在电影中创建了一个 `hello.txt` 文件，在播放后也不会有一个新的 `hello.txt`。这只是为了展示。
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然而，它不仅仅是一个展示。你可以暂停 Asciinema 电影，选择你在屏幕上看到的文本，并将其粘贴到一个活动终端，以运行该命令。Asciinema 是有用的文档。它向用户展示了如何完成一项任务，并允许他们进行复制和粘贴以确保准确性。
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### 上传你的 Asciinema 电影
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目前还没有 Asciinema 电影达到大片的地位，但你可以把你的电影上传到 Asciinema.org，与全世界分享。
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```
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`$ asciinema upload mymovie.cast`
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```
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如果你习惯了 YouTube 的上传时间，你会对 Asciinema 电影的传输速度感到惊喜。一个 `.cast` 文件通常只有几千字节，或最多几兆字节，所以上传几乎是瞬间完成的。你不需要一个账户来分享你的电影，但所有无人认领的电影在七天后会被删除。为了保存你的杰作，你可以在 Asciinema 上开设一个账户，然后坐等学院的召唤。
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### Asciinema 作为文档
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Asciinema 是演示最基本概念的好方法。因为它保留了从录制中复制和粘贴代码的能力，提供了按需暂停和播放的能力，并且完全准确地描绘了它的内容，它不仅仅是和屏幕录像一样好。它要好得多得多。无论你是用它来向你的朋友炫耀你的终端技能，还是用它来教育同事和学生，Asciinema 都是一个无价的、社交的、可利用的工具。
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/22/1/record-terminal-session-asciinema
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作者：[Seth Kenlon][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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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://opensource.com/users/seth
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[b]: https://github.com/lujun9972
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[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/freedos.png?itok=aOBLy7Ky (4 different color terminal windows with code)
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[2]: https://opensource.com/article/19/11/pkgsrc-netbsd-linux
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[3]: https://github.com/cirocosta/asciinema-edit
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