April 2022
Beginner to intermediate
486 pages
10h 22m
Chinese
Content preview from 云端基因组学
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370
｜
第
12
章
Out [8] Hello World!
所有经典
shell
命令均可这样运行；例如，在一个单元格输入
! l s
并运行，可列出
工作目录的所有内容。类似地，你可以以这种方式运行笔记本运行环境安装的任意
命令行工具。
Terra
平台所有预装环境都含
gsutil
包，因此你可以在任意
Terra
笔记
本使用这些工具。下节我们会带你学习几个示例。稍后我们还将以相同基本句法用
命令去运行
GATK
工具。我们的启动脚本已安装该工具。
至此，我们一直在讲代码单元格，但不要忘了所有描述性文本单元格也可以编辑。
你可双击几个单元格，观察编辑模式下其样式有何变化。尝试改动几处文本，改完
之后“运行”单元格（就像运行代码单元格那样），退出文本编辑模式。描述性文
本单元格采用一种简单格式标记语言
Markdown
，因此你可设置标题级别，制作项
目符号列表等。
Markdown
的更多用法，请参考
Jupyter
项目文档的帮助页（
https://
oreil.ly/07KtL
）。在笔记本新建单元格，系统默认使用代码单元格，但你可以用“
Cell
”
（单元格）菜单项“
Cell Type
”→“
Markdown
”将其切换为
Markdown
。
现在，相信你已牢固掌握笔记本的基础。我们该做一些与云环境和基因组主题更相
关的工作，毕竟这才是我们最感兴趣的。
12.2.4
用
gsutil
工具操作谷歌云存储桶
大多数时候，我们想要在笔记本操作的数据，都存在
GCS
桶，因此你要学的头号本
领是获取数据。令人欣慰的是，我们第
4
章及后面章节向你展示的所有操作，你都 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.