Cli1 Bibalex

This document provides an introduction to the GNU/Linux command line interface for beginners. It outlines the file system hierarchy, describes commands for navigation and help, managing files and directories, dealing with file contents, and getting system information. The commands covered include ls, cd, pwd, man, mkdir, touch, rm, cp, mv, cat, file, head, tail, grep, less, free, date, uptime, df, du, whoami, apt-get, and passwd. The document was created by Ahmed El-Mekkawy and Mohammed El-Sayed of the EGLUG Team.