Add website/content/zh/docs/reference/glossary/sysctl.md. (#14419)

* Add website/content/zh/docs/reference/glossary/sysctl.md. Update sysctl.md

* Modified format

* Add website/content/zh/docs/reference/glossary/sysctl.md.

* Update format

* Update sysctl.md

content/zh/docs/reference/glossary/sysctl.md

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+---
+title: sysctl
+id: sysctl
+date: 2019-02-12
+full_link: /docs/tasks/administer-cluster/sysctl-cluster/
+short_description: >
+  用于获取和设置 Unix 内核参数的接口
+
+aka:
+tags:
+- 工具
+---
+
+<!--
+---
+title: sysctl
+id: sysctl
+date: 2019-02-12
+full_link: /docs/tasks/administer-cluster/sysctl-cluster/
+short_description: >
+  An interface for getting and setting Unix kernel parameters
+
+aka:
+tags:
+- tool
+---
+-->
+
+<!--
+ `sysctl` is a semi-standardized interface for reading or changing the
+ attributes of the running Unix kernel.
+-->
+
+  `sysctl` 是一个半标准化的接口，用于读取或更改正在运行的 Unix 内核的属性。
+
+<!--more-->
+
+<!--
+On Unix-like systems, `sysctl` is both the name of the tool that administrators
+use to view and modify these settings, and also the system call that the tool
+uses.
+-->
+
+在类 Unix 系统上， `sysctl` 既是管理员用于查看和修改这些设置的工具的名称，也是该工具所调用的系统调用的名称。
+
+<!--
+{{< glossary_tooltip text="Container" term_id="container" >}} runtimes and
+network plugins may rely on `sysctl` values being set a certain way.
+-->
+
+{{< glossary_tooltip text="容器" term_id="container" >}} 运行时和网络插件可能对 `sysctl` 的取值有一定的要求。