How do I learn using both the TUI and the Web GUI?

Clone https://github.com/1nc0gn30/30-days-of-Linux-Fundamentals and run ./control-panel for the native C terminal TUI (with built-in Markdown reader, Flashcard Arena, and /tmp sandbox shells), or use the Astro Web GUI for browser command drills, XP tracking, and visual chmod/FHS calculators.

Is 30 Days of Linux Fundamentals completely free?

Yes, 100% of the 30 days, 90 study guides, C TUI drills, and web tools are open-source and unlocked by default with zero paywalls.

← Back to 30-Day Curriculum

WEEK 1 · FOUNDATIONS · TUI: ./control-panel --day 4

Day 04: File Viewing, Stream Editing & Text Editors

Inspect logs with pagers, edit configs in nano and vim, and filter/transform text with grep, sed, and awk.

XP 0

Streak 0

Command Mastery 0%

Study Music

YouTube Study Radio

Pick a track or paste any YouTube URL.

🍳 Breakfast (Syntax) Session

Type commands, build streaks, and then review the source guide.

Live Terminal Drill

Re-type the command exactly to clear each challenge.

target$ loading...

0 / 12 mastered

Command Board

Tap a command when you practiced it in your own terminal.

Command Intel

Meaning

Command explanation will appear here.

Sample Output

Output preview will appear here.

Useful Fun Fact

Fun facts about the active command will appear here.

Last Run Output

Run a command to see result feedback.

Knowledge Boost

Faster learning with topic cues, mini-missions, and external docs.

Key Topics

⚡ 60-Second Mental Model (Student Digest)Lesson OverviewPractical CommandsPractice Question

Mini Missions

Mission 1: Run cat and explain the output in one sentence.
Mission 2: Run less and explain the output in one sentence.
Mission 3: Run head and explain the output in one sentence.
Mission 4: Run tail and explain the output in one sentence.

Useful Resources

📖 Digestible Study Guide & Visual Architecture

Source: day-04-breakfast-guide.md · Synced with ./control-panel --day 4

Day 04 · Breakfast — File Viewing, Stream Editing & Text Editors

ZothOS × 1nc0gn30 Linux Dojo · Phase: Week 1 (Foundations) · Session: Breakfast (Morning Foundation & Core Command Syntax)

Core Commands: cat, less, more, head, tail, nano

⚡ 60-Second Mental Model (Student Digest)

╔══════════════════════════════════════════════════════════════════════════════╗
║  ZOTHOS × 1NC0GN30 // LINUX FILESYSTEM & SHELL EXECUTION ARCHITECTURE       ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║   [ USER TERMINAL / TUI ]  ──( stdin 0 )──►  [ BASH / ZSH SHELL PARSER ]     ║
║                                                       │                      ║
║                                              ( glibc / syscalls )            ║
║                                                       ▼                      ║
║   [ VFS / INODE TABLE ]    ◄───────────────  [ LINUX KERNEL RING 0 ]         ║
║     ├── /bin  (Core Binaries)                  ├── Process Scheduler         ║
║     ├── /etc  (System Configs)                 ├── Memory Manager            ║
║     ├── /home (Operator Workspaces)            └── Netfilter / I/O           ║
║     └── /var  (Logs & Runtime State)                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

Learning Pillar	How to Practice This Session
1. Native TUI (`./control-panel`)	Run `./control-panel` from repo root → Select Week 1 → Day 04 → Breakfast to drill interactive C lessons & quizzes.
2. Web Workstation (`astro-ui`)	Open `/day/4` → Select Breakfast tab → Type each target command in the live Mission Terminal to earn XP & streak mastery.
3. Safe Local Sandbox	Run `mkdir -p /tmp/linux-dojo-day-04 && cd /tmp/linux-dojo-day-04` to test every flag below without touching production files.

Lesson Overview

Topic: Kernel Modules Management

Description: In this lesson, we focus on managing kernel modules in Linux. Kernel modules are pieces of code that can be loaded and unloaded into the kernel upon demand, providing flexibility and efficiency. You'll learn how to load, unload, and query these modules, as well as modify kernel parameters.

Practical Commands

Load a module:

  modprobe <module_name>

Unload a module:
``` bash
rmmod

View loaded modules:

bash
lsmod

Modify kernel parameters:

bash
sysctl -w =
```

Practice Question

#### Question: What command is used to load a kernel module?

A) insmod

B) modprobe

C) lsmod

D) rmmod

#### Answer: B) modprobe

Make sure to practice these commands in a terminal to reinforce your understanding.

🥪 Lunch (Workflows) Session

Type commands, build streaks, and then review the source guide.

Live Terminal Drill

Re-type the command exactly to clear each challenge.

target$ loading...

0 / 12 mastered

Command Board

Tap a command when you practiced it in your own terminal.

Command Intel

Meaning

Command explanation will appear here.

Sample Output

Output preview will appear here.

Useful Fun Fact

Fun facts about the active command will appear here.

Last Run Output

Run a command to see result feedback.

Knowledge Boost

Faster learning with topic cues, mini-missions, and external docs.

Key Topics

⚡ 60-Second Mental Model (Student Digest)Lesson OverviewPractical CommandsPractice Question

Mini Missions

Mission 1: Run cat and explain the output in one sentence.
Mission 2: Run less and explain the output in one sentence.
Mission 3: Run head and explain the output in one sentence.
Mission 4: Run tail and explain the output in one sentence.

Useful Resources

📖 Digestible Study Guide & Visual Architecture

Source: day-04-lunch-guide.md · Synced with ./control-panel --day 4

Day 04 · Lunch — File Viewing, Stream Editing & Text Editors

ZothOS × 1nc0gn30 Linux Dojo · Phase: Week 1 (Foundations) · Session: Lunch (Midday Operational Workflows & Flag Mastery)

Core Commands: cat, less, more, head, tail, nano

⚡ 60-Second Mental Model (Student Digest)

╔══════════════════════════════════════════════════════════════════════════════╗
║  ZOTHOS × 1NC0GN30 // LINUX FILESYSTEM & SHELL EXECUTION ARCHITECTURE       ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║   [ USER TERMINAL / TUI ]  ──( stdin 0 )──►  [ BASH / ZSH SHELL PARSER ]     ║
║                                                       │                      ║
║                                              ( glibc / syscalls )            ║
║                                                       ▼                      ║
║   [ VFS / INODE TABLE ]    ◄───────────────  [ LINUX KERNEL RING 0 ]         ║
║     ├── /bin  (Core Binaries)                  ├── Process Scheduler         ║
║     ├── /etc  (System Configs)                 ├── Memory Manager            ║
║     ├── /home (Operator Workspaces)            └── Netfilter / I/O           ║
║     └── /var  (Logs & Runtime State)                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

Learning Pillar	How to Practice This Session
1. Native TUI (`./control-panel`)	Run `./control-panel` from repo root → Select Week 1 → Day 04 → Lunch to drill interactive C lessons & quizzes.
2. Web Workstation (`astro-ui`)	Open `/day/4` → Select Lunch tab → Type each target command in the live Mission Terminal to earn XP & streak mastery.
3. Safe Local Sandbox	Run `mkdir -p /tmp/linux-dojo-day-04 && cd /tmp/linux-dojo-day-04` to test every flag below without touching production files.

Lesson Overview

Topic: Kernel Parameters and Versioning

Description: In this lesson, we explore how to manage kernel parameters and understand kernel versioning in Linux. You'll learn to view, set, and persist kernel parameters, as well as how to determine the current kernel version and its significance.

Practical Commands

View current kernel version:

``` bash
uname -r

List all kernel parameters:

bash
Copy code
sysctl -a

Set a kernel parameter:

bash
Copy code
sysctl -w =

Persist kernel parameter changes:

bash
Copy code
echo "=" >> /etc/sysctl.conf
```

Practice Question

#### Question: Which command is used to display the current kernel version?

A) sysctl -a

B) uname -r

C) sysctl -w

D) lsmod

#### Answer: B) uname -r

Practice these commands in a terminal to solidify your understanding.

🍽️ Dinner (Hardening) Session

Type commands, build streaks, and then review the source guide.

Live Terminal Drill

Re-type the command exactly to clear each challenge.

target$ loading...

0 / 12 mastered

Command Board

Tap a command when you practiced it in your own terminal.

Command Intel

Meaning

Command explanation will appear here.

Sample Output

Output preview will appear here.

Useful Fun Fact

Fun facts about the active command will appear here.

Last Run Output

Run a command to see result feedback.

Knowledge Boost

Faster learning with topic cues, mini-missions, and external docs.

Key Topics

⚡ 60-Second Mental Model (Student Digest)Lesson OverviewPractical CommandsPractice Question

Mini Missions

Mission 1: Run cat and explain the output in one sentence.
Mission 2: Run less and explain the output in one sentence.
Mission 3: Run head and explain the output in one sentence.
Mission 4: Run tail and explain the output in one sentence.

Useful Resources

📖 Digestible Study Guide & Visual Architecture

Source: day-04-dinner-guide.md · Synced with ./control-panel --day 4

Day 04 · Dinner — File Viewing, Stream Editing & Text Editors

ZothOS × 1nc0gn30 Linux Dojo · Phase: Week 1 (Foundations) · Session: Dinner (Evening Hardening, Pipelines & Verification Lab)

Core Commands: cat, less, more, head, tail, nano

⚡ 60-Second Mental Model (Student Digest)

╔══════════════════════════════════════════════════════════════════════════════╗
║  ZOTHOS × 1NC0GN30 // LINUX FILESYSTEM & SHELL EXECUTION ARCHITECTURE       ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║   [ USER TERMINAL / TUI ]  ──( stdin 0 )──►  [ BASH / ZSH SHELL PARSER ]     ║
║                                                       │                      ║
║                                              ( glibc / syscalls )            ║
║                                                       ▼                      ║
║   [ VFS / INODE TABLE ]    ◄───────────────  [ LINUX KERNEL RING 0 ]         ║
║     ├── /bin  (Core Binaries)                  ├── Process Scheduler         ║
║     ├── /etc  (System Configs)                 ├── Memory Manager            ║
║     ├── /home (Operator Workspaces)            └── Netfilter / I/O           ║
║     └── /var  (Logs & Runtime State)                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

Learning Pillar	How to Practice This Session
1. Native TUI (`./control-panel`)	Run `./control-panel` from repo root → Select Week 1 → Day 04 → Dinner to drill interactive C lessons & quizzes.
2. Web Workstation (`astro-ui`)	Open `/day/4` → Select Dinner tab → Type each target command in the live Mission Terminal to earn XP & streak mastery.
3. Safe Local Sandbox	Run `mkdir -p /tmp/linux-dojo-day-04 && cd /tmp/linux-dojo-day-04` to test every flag below without touching production files.

Lesson Overview

Topic: Advanced Kernel Module Management

Description: In this lesson, we delve into advanced kernel module management techniques. You'll learn how to work with module dependencies, manually load modules, and troubleshoot issues related to kernel modules. This lesson is crucial for understanding the deeper workings of the Linux kernel and how to optimize system performance.

Practical Commands

Manually load a module:

``` bash
insmod /path/to/module.ko

View module dependencies:
Copy code

bash
modinfo -F depends

Check for module errors:
Copy code

bash
dmesg | grep
Blacklist a module (prevent it from loading):

Copy code

bash
echo "blacklist " >> /etc/modprobe.d/blacklist.conf
```

Practice Question

#### Question: Which command is used to manually load a kernel module?

A) modprobe

B) insmod

C) lsmod

D) rmmod

#### Answer: B) insmod

Be sure to try these commands in a live environment to fully grasp their applications.