-r 选项中的 9 是什么意思:zip -r9 ${OLDPWD}/package .?

问题描述

上下文:有关如何为具有依赖项的 Python 代码创建 zip 文件的 AWS 文档，请参阅:https://docs.aws.amazon.com/lambda/latest/dg/lambda-python-how-to-create-deployment-package.html

Context:AWS documentation on how to create zip files for python code with dependencies, see: https://docs.aws.amazon.com/lambda/latest/dg/lambda-python-how-to-create-deployment-package.html

我知道 -r 是递归标志，但我不清楚 -r9 中的9"实现了什么?

I understand -r is recursion flag, but I'm unclear what the "9" in -r9 achieves?

~/my-function$ cd package
~/my-function/package$ zip -r9 ${OLDPWD}/function.zip .
  adding: PIL/ (stored 0%)
  adding: PIL/.libs/ (stored 0%)
  adding: PIL/.libs/libfreetype-7ce95de6.so.6.16.1 (deflated 65%)
  adding: PIL/.libs/libjpeg-3fe7dfc0.so.9.3.0 (deflated 72%)
  adding: PIL/.libs/liblcms2-a6801db4.so.2.0.8 (deflated 67%)
...

推荐答案

-r9 是 -r 和 -9 的组合开关.

-r9 is a combination of the -r and -9 switches.

开关 -9 表示最强压缩，范围从 0 到 9.

The switch -9 means strongest compression, on a scale from 0 to 9.

输入 zip 以获取选项列表.

Type zip for a list of options.

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