用户权限模型：简单到“原始”。 Linux/Unix 的用户权限基于 UID/GID，外加文件上的 rwx 三位，这套设计在单机时代堪称经典，但在云计算和容器化的今天，简直像石器时代的石斧。现代系统需要细粒度的访问控制，比如基于角色的权限（RBAC）或属性（ABAC），而 Linux 还在靠 setuid 和 ACL ...

1991年8月25日，Linus在comp.os.minix新闻组发布了一条著名的消息：“我正在做一个（免费的）操作系统（只是个爱好，不会像GNU那样庞大专业）……”这被认为是Linux项目的正式诞生。 关键转折点是Linus决定采用GNU通用公共许可证 (GPL)发布Linux。这使得Linux成为一个真正的自由软件，允许任何人查看、修改和分发代码，只要他们同样以GPL方式分享修改。

Let's explore what Linux exit codes are, the list of common exit codes, and how you can use them to troubleshoot your Linux ...

Linux is popular in science due to open-source values, free licenses, and compatibility with custom software. The history of ...

GoboLinux is an experimental and extremely radical distro: it is not another contender for a Windows replacement, or a ...

Addresses manipulating and maintaining files within the UNIX file system; creating and editing text files using the vi and ed editors; using pipes, redirection, and filters; using advanced text ...

Although DOS/Windows commands cover the basics, the command set was never as elaborate as Unix. Microsoft later added a more comprehensive command language for Windows (see PowerShell).