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Linux and the Command Line
BeginnerFree LearningDevOps

Linux and the Command Line

by UptoSkills Team, Keerthana Y

Missions

15

Quests

98

Games

32

XP

400

Coins

30

Free Learning

Certificate optional — ₹499, or ₹199 on Pro

Self-paced
Certificate

Key Benefits

Earn XP & Level Up

Gain 400 XP to unlock badges and achievements

Collect Coins

Earn 30 coins to redeem rewards

Professional Certificate

QR-verified and recruiter-checkable — ₹499, or ₹199 on Pro

Unlock Achievements

Complete challenges and earn exclusive badges

About This League

This league provides a comprehensive introduction to Linux and its command line interface, a fundamental skill for roles in software development and IT operations. Students will gain hands-on experience with essential commands and utilities for navigating and managing the Linux environment. The curriculum is designed to build a strong foundation for further learning in DevOps and system administration.

What you will learn

After completing this league, you will be able to:

  • Navigate and manage files and directories effectively using core Linux commands like cd, ls, mkdir, and rm.
  • Understand and manipulate file permissions using chmod and manage user and group ownership with chown and chgrp.
  • Utilize powerful command-line tools such as grep, find, and wc for efficient text searching and manipulation.
  • Manage running processes, understand shell scripting basics, and install/manage software packages using apt and yum.
  • Apply learned concepts to practical scenarios like file organization, system troubleshooting, and automation.
  • Execute networking commands like ping, dig, and wget to inspect network connectivity and download web content.

What this league covers

ModuleWhat it covers
Welcome to the Command Line!Introduces the command line interface, its importance, accessing the terminal, and running your first echo command.
Navigating the File System (Part 1)Covers navigating directories with cd, listing contents with ls, understanding root and home directories, and distinguishing absolute vs. relative paths.
Working with Files and Directories (Part 1)Teaches creating directories with mkdir, files with touch, copying with cp, moving and renaming with mv, and deleting with rm and rmdir.
Viewing and Editing FilesExplains displaying file content with cat, viewing pages with less and more, and using the nano text editor.
Understanding PermissionsDetails file permissions (read, write, execute), user, group, and others, and changing permissions with chmod.
User and Group ManagementCovers understanding users and groups, viewing current user with whoami, and managing ownership with chown and chgrp.
Command Line Power: Wildcards and GlobbingExplains wildcards like *, ?, and character sets for pattern matching with commands like ls, cp, mv, and rm.
Searching for Files and ContentTeaches finding files by name, type, and size with find, and searching text within files using grep, combining them effectively.
Command Line Utilities: Text ManipulationCovers text processing utilities like wc for counting, sort for ordering lines, uniq for duplicates, and cut and paste.
Processes and Background JobsExplains processes, listing with ps and top, managing processes with kill, and running commands in the background and foreground.
Input/Output Redirection and PipesDetails standard output, standard error, redirecting and appending output, input redirection, and piping commands with |.
Shell Scripting FundamentalsIntroduces writing and running shell scripts, the shebang, making scripts executable, and using variables in scripts.
Package ManagementExplains package managers, and covers apt for Debian/Ubuntu and yum/dnf for Fedora/CentOS, including searching, installing, and updating.
Networking BasicsCovers networking concepts, checking IP addresses, pinging hosts, resolving domain names with dig/nslookup, and downloading files with wget/curl.
Putting It All Together: Practical ScenariosApplies learned commands to real-world scenarios like organizing files, troubleshooting, and includes a final project to build a command-line tool.

Students will be well-equipped to pursue Go for DevOps and Microservices.

Prerequisites

  • Confident on the command line — navigating directories, running commands, editing files.
  • Access to a Linux machine, VM or WSL install.

Learning Objectives

  • Understand the fundamental concepts of the Linux operating system, including its file system hierarchy, permissions, and basic processes.
  • Navigate the Linux command line interface proficiently using essential commands for file and directory management (e.g., ls, cd, pwd, mkdir, rm, cp, mv).
  • Execute commands to view and manipulate text files, including commands like cat, less, head, tail, grep, and sed.
  • Create and manage user accounts and groups, and understand basic user and group permission management.
  • Implement basic shell scripting to automate simple tasks, including writing and running a very basic script.
  • Identify and understand common command-line utilities used in DevOps environments for information retrieval and system monitoring (e.g., ps, top, df, du).