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Triple Dereference

Time of First Successful Submission: 2025-11-12 16:46:51

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-11-04 11:07:51

Command Arguments

Time of First Successful Submission: 2025-11-04 11:08:54

Command History

Time of First Successful Submission: 2025-11-04 11:10:13

The Root Path

Time of First Successful Submission: 2025-11-04 11:11:37

Absolute Paths

Time of First Successful Submission: 2025-11-04 11:16:31

Changing position

Time of First Successful Submission: 2025-11-04 11:18:17

Changing to an Absolute Path

Time of First Successful Submission: 2025-11-04 11:19:31

Relative Paths

Time of First Successful Submission: 2025-11-04 11:25:09

Cat

Time of First Successful Submission: 2025-11-04 11:48:33

Ls

Time of First Successful Submission: 2025-11-04 12:03:08

Ls All

Time of First Successful Submission: 2025-11-04 12:07:50

Find

Time of First Successful Submission: 2025-11-04 12:18:12

Piping Echo

Time of First Successful Submission: 2025-11-04 14:32:34

Piping Stdout

Time of First Successful Submission: 2025-11-04 14:40:55

Piping Stdin

Time of First Successful Submission: 2025-11-04 14:49:18

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-11-03 15:27:12

Using the VSCode Workspace

Time of First Successful Submission: 2025-11-03 15:30:06

Using the GUI Desktop

Time of First Successful Submission: 2025-11-03 15:33:04

Pasting into the Desktop

Time of First Successful Submission: 2025-11-03 15:34:57

Restarting Challenges

Time of First Successful Submission: 2025-11-03 15:37:45

Challenge Programs

Time of First Successful Submission: 2025-11-03 15:44:20

The Flag File

Time of First Successful Submission: 2025-11-03 15:47:05

Using Privileged Mode

Time of First Successful Submission: 2025-11-03 16:13:01

Persistent Home Directories - One

Time of First Successful Submission: 2025-11-04 10:54:46

Persistent Home Directories - Two

Time of First Successful Submission: 2025-11-04 10:57:07

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-11-04 11:07:51

Intro to Arguments

Time of First Successful Submission: 2025-11-04 11:08:54

Command History

Time of First Successful Submission: 2025-11-04 11:10:13

The Root

Time of First Successful Submission: 2025-11-04 11:11:37

Program and absolute paths

Time of First Successful Submission: 2025-11-04 11:16:31

Position thy self

Time of First Successful Submission: 2025-11-04 11:18:17

Position elsewhere

Time of First Successful Submission: 2025-11-04 11:19:31

implicit relative paths, from /

Time of First Successful Submission: 2025-11-04 11:25:09

explicit relative paths, from /

Time of First Successful Submission: 2025-11-04 11:33:20

implicit relative path

Time of First Successful Submission: 2025-11-04 11:35:04

home sweet home

Time of First Successful Submission: 2025-11-04 11:40:58

cat: not the pet, but the command!

Time of First Successful Submission: 2025-11-04 11:48:33

catting absolute paths

Time of First Successful Submission: 2025-11-04 11:49:20

more catting practice

Time of First Successful Submission: 2025-11-04 11:57:51

grepping for a needle in a haystack

Time of First Successful Submission: 2025-11-04 11:59:09

comparing files

Time of First Successful Submission: 2025-11-04 12:00:54

listing files

Time of First Successful Submission: 2025-11-04 12:03:08

touching files

Time of First Successful Submission: 2025-11-04 12:04:19

removing files

Time of First Successful Submission: 2025-11-04 12:05:06

moving files

Time of First Successful Submission: 2025-11-04 12:06:15

copying files

Time of First Successful Submission: 2025-11-06 06:56:16

hidden files

Time of First Successful Submission: 2025-11-04 12:07:50

An Epic Filesystem Quest

Time of First Successful Submission: 2025-11-04 12:14:07

making directories

Time of First Successful Submission: 2025-11-04 12:15:34

finding files

Time of First Successful Submission: 2025-11-04 12:18:12

linking files

Time of First Successful Submission: 2025-11-04 13:03:10

Learning From Documentation

Time of First Successful Submission: 2025-11-04 13:12:26

Learning Complex Usage

Time of First Successful Submission: 2025-11-04 13:19:23

Reading Manuals

Time of First Successful Submission: 2025-11-04 13:33:18

Searching Manuals

Time of First Successful Submission: 2025-11-04 13:35:06

Searching For Manuals

Time of First Successful Submission: 2025-11-04 13:46:11

Helpful Programs

Time of First Successful Submission: 2025-11-04 13:51:12

Help for Builtins

Time of First Successful Submission: 2025-11-04 13:53:02

Matching with *

Time of First Successful Submission: 2025-11-04 14:01:46

Matching with ?

Time of First Successful Submission: 2025-11-04 14:04:52

Matching with []

Time of First Successful Submission: 2025-11-04 14:07:57

Matching paths with []

Time of First Successful Submission: 2025-11-04 14:09:48

Multiple globs

Time of First Successful Submission: 2025-11-04 14:14:12

Mixing globs

Time of First Successful Submission: 2025-11-04 14:24:11

Exclusionary globbing

Time of First Successful Submission: 2025-11-04 14:27:14

Tab completion

Time of First Successful Submission: 2025-11-04 14:28:44

Multiple options for tab completion

Time of First Successful Submission: 2025-11-04 14:29:57

Tab completion on commands

Time of First Successful Submission: 2025-11-04 14:30:59

Redirecting output

Time of First Successful Submission: 2025-11-04 14:32:34

Redirecting more output

Time of First Successful Submission: 2025-11-04 14:40:55

Appending output

Time of First Successful Submission: 2025-11-04 14:43:49

Redirecting errors

Time of First Successful Submission: 2025-11-04 14:45:23

Redirecting input

Time of First Successful Submission: 2025-11-04 14:49:18

Grepping stored results

Time of First Successful Submission: 2025-11-04 14:53:05

Grepping live output

Time of First Successful Submission: 2025-11-04 14:54:14

Grepping errors

Time of First Successful Submission: 2025-11-04 15:14:41

Filtering with grep -v

Time of First Successful Submission: 2025-11-04 15:18:33

Filtering with sed

Time of First Successful Submission: 2025-11-06 06:55:09

Duplicating piped data with tee

Time of First Successful Submission: 2025-11-04 15:35:08

Process substitution for input

Time of First Successful Submission: 2025-11-05 10:05:10

Writing to multiple programs

Time of First Successful Submission: 2025-11-05 10:21:29

Split-piping stderr and stdout

Time of First Successful Submission: 2025-11-05 10:31:04

Named pipes

Time of First Successful Submission: 2025-11-05 10:36:05

Printing Variables

Time of First Successful Submission: 2025-11-05 10:39:17

Setting Variables

Time of First Successful Submission: 2025-11-05 10:49:23

Multi-word Variables

Time of First Successful Submission: 2025-11-05 10:50:27

Exporting Variables

Time of First Successful Submission: 2025-11-05 10:54:24

Printing Exported Variables

Time of First Successful Submission: 2025-11-05 10:55:48

Storing Command Output

Time of First Successful Submission: 2025-11-05 10:57:35

Reading Input

Time of First Successful Submission: 2025-11-05 11:01:09

Reading Files

Time of First Successful Submission: 2025-11-05 11:04:46

Translating characters

Time of First Successful Submission: 2025-11-05 11:08:50

Deleting characters

Time of First Successful Submission: 2025-11-05 11:10:23

Deleting newlines

Time of First Successful Submission: 2025-11-05 11:12:38

Extracting the first lines with head

Time of First Successful Submission: 2025-11-05 11:13:49

Extracting specific sections of text

Time of First Successful Submission: 2025-11-05 11:22:04

Sorting data

Time of First Successful Submission: 2025-11-05 11:24:17

Listing Processes

Time of First Successful Submission: 2025-11-05 11:30:48

Killing Processes

Time of First Successful Submission: 2025-11-05 11:33:25

Interrupting Processes

Time of First Successful Submission: 2025-11-05 11:34:38

Killing Misbehaving Processes

Time of First Successful Submission: 2025-11-05 11:39:27

Suspending Processes

Time of First Successful Submission: 2025-11-05 11:40:28

Resuming Processes

Time of First Successful Submission: 2025-11-05 11:41:44

Backgrounding Processes

Time of First Successful Submission: 2025-11-05 11:43:27

Foregrounding Processes

Time of First Successful Submission: 2025-11-05 11:47:15

Starting Backgrounded Processes

Time of First Successful Submission: 2025-11-05 11:47:59

Process Exit Codes

Time of First Successful Submission: 2025-11-05 11:56:57

Becoming root with su

Time of First Successful Submission: 2025-11-05 11:59:03

Other users with su

Time of First Successful Submission: 2025-11-05 11:59:46

Cracking passwords

Time of First Successful Submission: 2025-11-05 12:04:19

Using sudo

Time of First Successful Submission: 2025-11-05 12:07:40

Changing File Ownership

Time of First Successful Submission: 2025-11-05 12:16:58

Groups and Files

Time of First Successful Submission: 2025-11-05 12:21:48

Fun With Groups Names

Time of First Successful Submission: 2025-11-05 12:32:08

Changing Permissions

Time of First Successful Submission: 2025-11-05 12:33:51

Executable Files

Time of First Successful Submission: 2025-11-05 12:36:32

Permission Tweaking Practice

Time of First Successful Submission: 2025-11-05 12:40:56

Permissions Setting Practice

Time of First Successful Submission: 2025-11-06 06:52:22

The SUID Bit

Time of First Successful Submission: 2025-11-06 06:53:42

Chaining with Semicolons

Time of First Successful Submission: 2025-11-06 07:24:02

Building on Success

Time of First Successful Submission: 2025-11-06 07:24:58

Handling Failure

Time of First Successful Submission: 2025-11-06 07:25:40

Your First Shell Script

Time of First Successful Submission: 2025-11-06 07:35:19

Redirecting Script Output

Time of First Successful Submission: 2025-11-06 07:39:59

Executable Shell Scripts

Time of First Successful Submission: 2025-11-06 07:45:19

Understanding Shebangs

Time of First Successful Submission: 2025-11-06 07:49:40

Scripting with Arguments

Time of First Successful Submission: 2025-11-06 07:58:14

Scripting with Conditionals

Time of First Successful Submission: 2025-11-06 08:02:20

Scripting with Default Cases

Time of First Successful Submission: 2025-11-06 08:07:31

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-11-06 08:13:14

Reading Shell Scripts

Time of First Successful Submission: 2025-11-06 08:14:33

Launching Screen

Time of First Successful Submission: 2025-11-06 08:17:23

Detaching and Attaching

Time of First Successful Submission: 2025-11-06 08:20:06

Finding Sessions

Time of First Successful Submission: 2025-11-06 08:22:25

Switching Windows

Time of First Successful Submission: 2025-11-06 08:24:17

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-11-06 08:26:17

Switching Windows (tmux)

Time of First Successful Submission: 2025-11-06 08:28:24

The PATH Variable

Time of First Successful Submission: 2025-11-07 07:43:01

Setting PATH

Time of First Successful Submission: 2025-11-07 07:44:42

Finding Commands

Time of First Successful Submission: 2025-11-07 07:47:49

Adding Commands

Time of First Successful Submission: 2025-11-07 08:02:40

Hijacking Commands

Time of First Successful Submission: 2025-11-07 08:25:41

Bashrc Backdoor

Time of First Successful Submission: 2025-11-07 09:49:44

Sniffing Input

Time of First Successful Submission: 2025-11-07 10:14:01

Overshared Directories

Time of First Successful Submission: 2025-11-07 10:49:07

Tricky Linking

Time of First Successful Submission: 2025-11-07 11:10:20

Sniffing Process Arguments

Time of First Successful Submission: 2025-11-07 11:22:29

Snooping on Configurations

Time of First Successful Submission: 2025-11-07 11:28:18

The Fork Bomb

Time of First Successful Submission: 2025-11-07 11:43:57

Disk-Space Doomsday

Time of First Successful Submission: 2025-11-07 11:47:46

rm -rf /

Time of First Successful Submission: 2025-11-07 11:50:47

Life after rm -rf /

Time of First Successful Submission: 2025-11-07 11:56:49

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-11-07 12:24:21

Computing 101

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Your First Register

Time of First Successful Submission: 2025-11-12 09:13:16

Your First Syscall

Time of First Successful Submission: 2025-11-12 10:10:17

Exit Codes

Time of First Successful Submission: 2025-11-12 10:19:39

Building Executables

Time of First Successful Submission: 2025-11-12 12:16:22

Moving Between Registers

Time of First Successful Submission: 2025-11-12 12:32:08

Loading From Memory

Time of First Successful Submission: 2025-11-12 16:08:19

More Loading Practice

Time of First Successful Submission: 2025-11-12 16:09:22

Dereferencing Pointers

Time of First Successful Submission: 2025-11-12 16:17:56

Dereferencing Yourself

Time of First Successful Submission: 2025-11-12 16:26:44

Dereferencing with Offsets

Time of First Successful Submission: 2025-11-12 16:33:29

Stored Addresses

Time of First Successful Submission: 2025-11-12 16:38:11

Double Dereference

Time of First Successful Submission: 2025-11-12 16:45:12

Tracing Syscalls

Time of First Successful Submission: 2025-11-12 12:38:53

Starting GDB

Time of First Successful Submission: 2025-11-12 12:39:59

Starting Programs in GDB

Time of First Successful Submission: 2025-11-12 12:47:35

Writing Output

Time of First Successful Submission: 2025-11-13 07:29:21

Chaining Syscalls

Time of First Successful Submission: 2025-11-13 07:34:23

Writing Strings

Time of First Successful Submission: 2025-11-13 07:35:07

Reading Data

Time of First Successful Submission: 2025-11-13 07:40:37

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-11-03 15:27:12

Using the VSCode Workspace

Time of First Successful Submission: 2025-11-03 15:30:06

Using the GUI Desktop

Time of First Successful Submission: 2025-11-03 15:33:04

Pasting into the Desktop

Time of First Successful Submission: 2025-11-03 15:34:57

Restarting Challenges

Time of First Successful Submission: 2025-11-03 15:37:45

Getting Help

Time of First Successful Submission: 2025-11-03 15:40:10

Challenge Programs

Time of First Successful Submission: 2025-11-03 15:44:20

The Flag File

Time of First Successful Submission: 2025-11-03 15:47:05

Using Privileged Mode

Time of First Successful Submission: 2025-11-03 16:13:01

Persistent Home Directories - One

Time of First Successful Submission: 2025-11-04 10:54:46

Persistent Home Directories - Two

Time of First Successful Submission: 2025-11-04 10:57:07