Joao_Lucas

Intro to Programming Languages

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Commands

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Command Arguments

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Command History

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The Root Path

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Absolute Paths

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Changing position

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Changing to an Absolute Path

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Relative Paths

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Cat

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Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-16 15:09:33

Using the VSCode Workspace

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Using the GUI Desktop

Time of First Successful Submission: 2026-02-16 15:12:54

Pasting into the Desktop

Time of First Successful Submission: 2026-02-16 15:14:21

Restarting Challenges

Time of First Successful Submission: 2026-02-16 15:09:00

Challenge Programs

Time of First Successful Submission: 2026-02-16 15:07:55

The Flag File

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Using Privileged Mode

Time of First Successful Submission: 2026-02-16 15:06:41

Persistent Home Directories - One

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Persistent Home Directories - Two

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Linux Luminarium

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Intro to Commands

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Intro to Arguments

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Command History

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The Root

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Program and absolute paths

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Position thy self

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Position elsewhere

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implicit relative paths, from /

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explicit relative paths, from /

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implicit relative path

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home sweet home

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cat: not the pet, but the command!

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catting absolute paths

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more catting practice

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grepping for a needle in a haystack

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comparing files

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Computing 101

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Your First Register

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Your First Syscall

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Exit Codes

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Building Executables

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Moving Between Registers

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Loading From Memory

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More Loading Practice

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Dereferencing Pointers

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Dereferencing Yourself

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Dereferencing with Offsets

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Stored Addresses

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Double Dereference

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The Stack

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Stack Offsets

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Program Arguments on the Stack

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Popping From the Stack

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Disassembling Programs

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Tracing Syscalls

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Starting GDB

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Quitting GDB

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Starting Programs in GDB

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Disassembling in GDB

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Stepping Through Instructions

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Reading Register Values

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Popping Stack Values

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Examining Memory

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Examining Stack Pointers

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Cooperative Debugging

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Writing Output

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Chaining Syscalls

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Writing Strings

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Reading Data

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Opening Files

Time of First Successful Submission: 2026-03-19 14:11:59

Hardcoding the Filename

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GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-02-16 15:09:33

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-16 15:10:49

Using the GUI Desktop

Time of First Successful Submission: 2026-02-16 15:12:54

Pasting into the Desktop

Time of First Successful Submission: 2026-02-16 15:14:21

Restarting Challenges

Time of First Successful Submission: 2026-02-16 15:09:00

Challenge Programs

Time of First Successful Submission: 2026-02-16 15:07:55

The Flag File

Time of First Successful Submission: 2026-02-16 15:07:19

Using Privileged Mode

Time of First Successful Submission: 2026-02-16 15:06:41

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-16 15:38:02

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-16 15:38:54