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1 / 202 22008 / 22791

Triple Dereference

Time of First Successful Submission: 2025-12-25 11:25:10

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-12-20 21:12:59

Command Arguments

Time of First Successful Submission: 2025-12-20 21:13:43

Command History

Time of First Successful Submission: 2025-12-20 21:14:15

The Root Path

Time of First Successful Submission: 2025-12-20 21:25:15

Absolute Paths

Time of First Successful Submission: 2025-12-20 21:27:35

Changing position

Time of First Successful Submission: 2025-12-20 21:29:11

Changing to an Absolute Path

Time of First Successful Submission: 2025-12-20 21:31:55

Relative Paths

Time of First Successful Submission: 2025-12-20 21:35:23

Cat

Time of First Successful Submission: 2025-12-20 21:45:22

Ls

Time of First Successful Submission: 2025-12-20 21:52:55

Ls All

Time of First Successful Submission: 2025-12-20 22:21:08

Find

Time of First Successful Submission: 2025-12-20 22:36:39

Piping Echo

Time of First Successful Submission: 2025-12-21 10:37:19

Piping Stdout

Time of First Successful Submission: 2025-12-21 10:38:43

Piping Stdin

Time of First Successful Submission: 2025-12-21 13:36:11

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-12-20 08:37:37

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-20 08:40:35

Using the GUI Desktop

Time of First Successful Submission: 2025-12-20 09:46:41

Pasting into the Desktop

Time of First Successful Submission: 2025-12-20 09:48:18

Restarting Challenges

Time of First Successful Submission: 2025-12-20 10:04:02

Challenge Programs

Time of First Successful Submission: 2025-12-20 21:00:30

The Flag File

Time of First Successful Submission: 2025-12-20 21:03:06

Using Privileged Mode

Time of First Successful Submission: 2025-12-20 21:07:00

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-20 21:09:24

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-20 21:10:08

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-12-20 21:12:59

Intro to Arguments

Time of First Successful Submission: 2025-12-20 21:13:43

Command History

Time of First Successful Submission: 2025-12-20 21:14:15

The Root

Time of First Successful Submission: 2025-12-20 21:25:15

Program and absolute paths

Time of First Successful Submission: 2025-12-20 21:27:35

Position thy self

Time of First Successful Submission: 2025-12-20 21:29:11

Position elsewhere

Time of First Successful Submission: 2025-12-20 21:31:55

implicit relative paths, from /

Time of First Successful Submission: 2025-12-20 21:35:23

explicit relative paths, from /

Time of First Successful Submission: 2025-12-20 21:37:42

implicit relative path

Time of First Successful Submission: 2025-12-20 21:38:31

home sweet home

Time of First Successful Submission: 2025-12-20 21:42:59

cat: not the pet, but the command!

Time of First Successful Submission: 2025-12-20 21:45:22

catting absolute paths

Time of First Successful Submission: 2025-12-20 21:46:11

more catting practice

Time of First Successful Submission: 2025-12-20 21:47:43

grepping for a needle in a haystack

Time of First Successful Submission: 2025-12-20 21:48:35

comparing files

Time of First Successful Submission: 2025-12-20 21:49:34

listing files

Time of First Successful Submission: 2025-12-20 21:52:55

touching files

Time of First Successful Submission: 2025-12-20 21:54:55

removing files

Time of First Successful Submission: 2025-12-20 22:00:05

moving files

Time of First Successful Submission: 2025-12-20 22:16:59

copying files

Time of First Successful Submission: 2025-12-20 22:20:08

hidden files

Time of First Successful Submission: 2025-12-20 22:21:08

An Epic Filesystem Quest

Time of First Successful Submission: 2025-12-20 22:27:50

making directories

Time of First Successful Submission: 2025-12-20 22:29:18

finding files

Time of First Successful Submission: 2025-12-20 22:36:39

linking files

Time of First Successful Submission: 2025-12-20 22:47:43

Learning From Documentation

Time of First Successful Submission: 2025-12-20 23:38:55

Learning Complex Usage

Time of First Successful Submission: 2025-12-20 23:43:44

Reading Manuals

Time of First Successful Submission: 2025-12-20 23:46:09

Searching Manuals

Time of First Successful Submission: 2025-12-20 23:49:12

Searching For Manuals

Time of First Successful Submission: 2025-12-20 23:59:38

Helpful Programs

Time of First Successful Submission: 2025-12-21 08:51:27

Help for Builtins

Time of First Successful Submission: 2025-12-21 08:56:03

Matching with *

Time of First Successful Submission: 2025-12-21 09:11:19

Matching with ?

Time of First Successful Submission: 2025-12-21 09:13:54

Matching with []

Time of First Successful Submission: 2025-12-21 09:15:21

Matching paths with []

Time of First Successful Submission: 2025-12-21 09:20:18

Multiple globs

Time of First Successful Submission: 2025-12-21 09:22:16

Mixing globs

Time of First Successful Submission: 2025-12-21 10:00:43

Exclusionary globbing

Time of First Successful Submission: 2025-12-21 10:03:26

Tab completion

Time of First Successful Submission: 2025-12-21 10:31:00

Multiple options for tab completion

Time of First Successful Submission: 2025-12-21 10:33:53

Tab completion on commands

Time of First Successful Submission: 2025-12-21 10:34:34

Redirecting output

Time of First Successful Submission: 2025-12-21 10:37:19

Redirecting more output

Time of First Successful Submission: 2025-12-21 10:38:43

Appending output

Time of First Successful Submission: 2025-12-21 10:41:04

Redirecting errors

Time of First Successful Submission: 2025-12-21 10:44:01

Redirecting input

Time of First Successful Submission: 2025-12-21 13:36:11

Grepping stored results

Time of First Successful Submission: 2025-12-21 13:38:25

Grepping live output

Time of First Successful Submission: 2025-12-21 13:43:13

Grepping errors

Time of First Successful Submission: 2025-12-21 13:55:05

Filtering with grep -v

Time of First Successful Submission: 2025-12-21 13:58:31

Filtering with sed

Time of First Successful Submission: 2025-12-21 14:04:36

Duplicating piped data with tee

Time of First Successful Submission: 2025-12-21 14:21:00

Process substitution for input

Time of First Successful Submission: 2025-12-21 20:41:32

Writing to multiple programs

Time of First Successful Submission: 2025-12-21 20:45:40

Split-piping stderr and stdout

Time of First Successful Submission: 2025-12-21 20:52:04

Named pipes

Time of First Successful Submission: 2025-12-21 21:54:04

Printing Variables

Time of First Successful Submission: 2025-12-21 21:56:03

Setting Variables

Time of First Successful Submission: 2025-12-21 22:00:38

Multi-word Variables

Time of First Successful Submission: 2025-12-21 22:02:08

Exporting Variables

Time of First Successful Submission: 2025-12-21 22:03:48

Printing Exported Variables

Time of First Successful Submission: 2025-12-21 22:05:37

Storing Command Output

Time of First Successful Submission: 2025-12-21 22:06:44

Reading Input

Time of First Successful Submission: 2025-12-21 22:14:04

Reading Files

Time of First Successful Submission: 2025-12-21 22:15:58

Translating characters

Time of First Successful Submission: 2025-12-21 22:25:49

Deleting characters

Time of First Successful Submission: 2025-12-21 22:27:22

Deleting newlines

Time of First Successful Submission: 2025-12-21 22:28:37

Extracting the first lines with head

Time of First Successful Submission: 2025-12-21 22:29:49

Extracting specific sections of text

Time of First Successful Submission: 2025-12-21 22:31:27

Sorting data

Time of First Successful Submission: 2025-12-21 22:33:27

Listing Processes

Time of First Successful Submission: 2025-12-21 22:37:22

Killing Processes

Time of First Successful Submission: 2025-12-21 22:39:36

Interrupting Processes

Time of First Successful Submission: 2025-12-21 22:40:14

Killing Misbehaving Processes

Time of First Successful Submission: 2025-12-21 22:42:44

Suspending Processes

Time of First Successful Submission: 2025-12-21 22:44:12

Resuming Processes

Time of First Successful Submission: 2025-12-21 22:45:05

Backgrounding Processes

Time of First Successful Submission: 2025-12-21 22:55:17

Foregrounding Processes

Time of First Successful Submission: 2025-12-21 22:58:35

Starting Backgrounded Processes

Time of First Successful Submission: 2025-12-21 22:59:35

Process Exit Codes

Time of First Successful Submission: 2025-12-21 23:00:47

Becoming root with su

Time of First Successful Submission: 2025-12-21 23:03:53

Other users with su

Time of First Successful Submission: 2025-12-21 23:04:34

Cracking passwords

Time of First Successful Submission: 2025-12-21 23:15:04

Using sudo

Time of First Successful Submission: 2025-12-21 23:19:35

Changing File Ownership

Time of First Successful Submission: 2025-12-21 23:47:00

Groups and Files

Time of First Successful Submission: 2025-12-21 23:48:51

Fun With Groups Names

Time of First Successful Submission: 2025-12-21 23:52:06

Changing Permissions

Time of First Successful Submission: 2025-12-21 23:57:21

Executable Files

Time of First Successful Submission: 2025-12-21 23:57:52

Permission Tweaking Practice

Time of First Successful Submission: 2025-12-22 00:14:14

Permissions Setting Practice

Time of First Successful Submission: 2025-12-22 00:19:56

The SUID Bit

Time of First Successful Submission: 2025-12-22 00:22:07

Chaining with Semicolons

Time of First Successful Submission: 2025-12-22 00:36:46

Building on Success

Time of First Successful Submission: 2025-12-22 09:05:23

Handling Failure

Time of First Successful Submission: 2025-12-22 09:06:08

Your First Shell Script

Time of First Successful Submission: 2025-12-22 09:09:14

Redirecting Script Output

Time of First Successful Submission: 2025-12-22 09:15:10

Executable Shell Scripts

Time of First Successful Submission: 2025-12-22 09:17:20

Understanding Shebangs

Time of First Successful Submission: 2025-12-22 09:30:04

Scripting with Arguments

Time of First Successful Submission: 2025-12-22 09:38:31

Scripting with Conditionals

Time of First Successful Submission: 2025-12-22 11:23:12

Scripting with Default Cases

Time of First Successful Submission: 2025-12-22 11:24:39

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-22 11:28:15

Reading Shell Scripts

Time of First Successful Submission: 2025-12-22 11:29:16

Launching Screen

Time of First Successful Submission: 2025-12-22 11:30:23

Detaching and Attaching

Time of First Successful Submission: 2025-12-22 11:31:49

Finding Sessions

Time of First Successful Submission: 2025-12-22 11:33:04

Switching Windows

Time of First Successful Submission: 2025-12-22 11:34:25

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-22 11:35:31

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-22 11:38:49

The PATH Variable

Time of First Successful Submission: 2025-12-22 11:41:36

Setting PATH

Time of First Successful Submission: 2025-12-22 11:44:57

Finding Commands

Time of First Successful Submission: 2025-12-22 11:46:00

Adding Commands

Time of First Successful Submission: 2025-12-23 06:57:36

Hijacking Commands

Time of First Successful Submission: 2025-12-23 07:48:38

Bashrc Backdoor

Time of First Successful Submission: 2025-12-23 11:16:01

Sniffing Input

Time of First Successful Submission: 2025-12-23 15:39:40

Overshared Directories

Time of First Successful Submission: 2025-12-23 17:12:35

Tricky Linking

Time of First Successful Submission: 2025-12-24 07:36:23

Sniffing Process Arguments

Time of First Successful Submission: 2025-12-24 10:13:47

Snooping on Configurations

Time of First Successful Submission: 2025-12-24 10:19:27

The Fork Bomb

Time of First Successful Submission: 2025-12-24 10:50:39

Disk-Space Doomsday

Time of First Successful Submission: 2025-12-24 11:17:37

rm -rf /

Time of First Successful Submission: 2025-12-24 11:21:05

Life after rm -rf /

Time of First Successful Submission: 2025-12-24 11:25:28

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-12-24 11:30:16

Computing 101

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Your First Register

Time of First Successful Submission: 2025-12-24 18:40:51

Your First Syscall

Time of First Successful Submission: 2025-12-24 18:46:06

Exit Codes

Time of First Successful Submission: 2025-12-24 18:52:14

Building Executables

Time of First Successful Submission: 2025-12-24 19:01:33

Moving Between Registers

Time of First Successful Submission: 2025-12-24 19:17:36

Loading From Memory

Time of First Successful Submission: 2025-12-24 19:53:01

More Loading Practice

Time of First Successful Submission: 2025-12-24 20:07:40

Dereferencing Pointers

Time of First Successful Submission: 2025-12-24 20:21:56

Dereferencing Yourself

Time of First Successful Submission: 2025-12-24 20:25:37

Dereferencing with Offsets

Time of First Successful Submission: 2025-12-24 20:28:55

Stored Addresses

Time of First Successful Submission: 2025-12-24 21:04:22

Double Dereference

Time of First Successful Submission: 2025-12-25 11:18:37

Tracing Syscalls

Time of First Successful Submission: 2025-12-24 19:19:28

Starting GDB

Time of First Successful Submission: 2025-12-24 19:20:46

Starting Programs in GDB

Time of First Successful Submission: 2025-12-24 19:21:52

Writing Output

Time of First Successful Submission: 2025-12-27 08:56:07

Chaining Syscalls

Time of First Successful Submission: 2025-12-27 10:11:30

Writing Strings

Time of First Successful Submission: 2025-12-27 17:13:41

Reading Data

Time of First Successful Submission: 2025-12-27 17:28:01

set-register

Time of First Successful Submission: 2025-12-27 17:47:35

set-multiple-registers

Time of First Successful Submission: 2025-12-27 17:49:05

add-to-register

Time of First Successful Submission: 2025-12-27 17:52:13

linear-equation-registers

Time of First Successful Submission: 2025-12-27 18:52:08

integer-division

Time of First Successful Submission: 2025-12-28 07:39:34

modulo-operation

Time of First Successful Submission: 2025-12-28 07:44:03

set-upper-byte

Time of First Successful Submission: 2025-12-28 07:57:33

efficient-modulo

Time of First Successful Submission: 2025-12-28 08:08:11

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-12-20 08:37:37

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-20 08:40:35

Using the GUI Desktop

Time of First Successful Submission: 2025-12-20 09:46:41

Pasting into the Desktop

Time of First Successful Submission: 2025-12-20 09:48:18

Connecting over SSH

Time of First Successful Submission: 2025-12-20 10:00:07

Restarting Challenges

Time of First Successful Submission: 2025-12-20 10:04:02

Challenge Programs

Time of First Successful Submission: 2025-12-20 21:00:30

The Flag File

Time of First Successful Submission: 2025-12-20 21:03:06

Using Privileged Mode

Time of First Successful Submission: 2025-12-20 21:07:00

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-20 21:09:24

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-20 21:10:08