This article provides a concise guide to common Linux commands. It covers essential functionalities including file manipulation (ls, cp, mv, rm, mkdir, rmdir), directory navigation (pwd), file content viewing (cat), text output (echo), process management (ps, top, kill), system information (df, free), searching (grep, find), permission changes (chmod, chown), archiving (tar), and downloading (wget, curl). Each command is briefly described with an example output. The guide is useful for both beginners and experienced users needing a quick reference.

本教程详细介绍了如何在 Linux 系统上升级 GCC 编译器，适用于 Ubuntu、CentOS 等常见 Linux 发行版，帮助开发者提升编译效率。