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1 / 202 21978 / 22789

Triple Dereference

Time of First Successful Submission: 2025-12-23 10:49:24

Intro to Programming Languages

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Commands

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

Command Arguments

Time of First Successful Submission: 2025-11-04 04:08:27

Command History

Time of First Successful Submission: 2025-11-04 16:03:08

The Root Path

Time of First Successful Submission: 2025-11-04 16:05:49

Absolute Paths

Time of First Successful Submission: 2025-11-04 16:06:58

Changing position

Time of First Successful Submission: 2025-11-04 16:14:25

Changing to an Absolute Path

Time of First Successful Submission: 2025-11-04 16:15:26

Relative Paths

Time of First Successful Submission: 2025-11-04 16:27:10

Cat

Time of First Successful Submission: 2025-11-04 17:28:54

Ls

Time of First Successful Submission: 2025-11-04 17:52:11

Ls All

Time of First Successful Submission: 2025-11-05 09:21:13

Find

Time of First Successful Submission: 2025-11-05 09:46:22

Piping Echo

Time of First Successful Submission: 2025-11-07 14:41:20

Piping Stdout

Time of First Successful Submission: 2025-11-07 14:44:21

Piping Stdin

Time of First Successful Submission: 2025-11-08 14:43:49

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-11-03 15:11:42

Using the VSCode Workspace

Time of First Successful Submission: 2025-11-03 15:14:05

Using the GUI Desktop

Time of First Successful Submission: 2025-11-03 15:20:09

Pasting into the Desktop

Time of First Successful Submission: 2025-11-03 15:25:36

Restarting Challenges

Time of First Successful Submission: 2025-11-03 15:28:03

Challenge Programs

Time of First Successful Submission: 2025-11-10 16:22:28

Linux Luminarium

128 / 128 531 / 32286

Intro to Commands

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

Intro to Arguments

Time of First Successful Submission: 2025-11-04 04:08:27

Command History

Time of First Successful Submission: 2025-11-04 16:03:08

The Root

Time of First Successful Submission: 2025-11-04 16:05:49

Program and absolute paths

Time of First Successful Submission: 2025-11-04 16:06:58

Position thy self

Time of First Successful Submission: 2025-11-04 16:14:25

Position elsewhere

Time of First Successful Submission: 2025-11-04 16:15:26

implicit relative paths, from /

Time of First Successful Submission: 2025-11-04 16:27:10

explicit relative paths, from /

Time of First Successful Submission: 2025-11-04 16:33:04

implicit relative path

Time of First Successful Submission: 2025-11-04 16:42:34

home sweet home

Time of First Successful Submission: 2025-11-04 17:27:17

cat: not the pet, but the command!

Time of First Successful Submission: 2025-11-04 17:28:54

catting absolute paths

Time of First Successful Submission: 2025-11-04 17:30:27

more catting practice

Time of First Successful Submission: 2025-11-04 17:31:22

grepping for a needle in a haystack

Time of First Successful Submission: 2025-11-04 17:32:48

comparing files

Time of First Successful Submission: 2025-11-04 17:37:21

listing files

Time of First Successful Submission: 2025-11-04 17:52:11

touching files

Time of First Successful Submission: 2025-11-04 17:57:55

removing files

Time of First Successful Submission: 2025-11-05 09:17:33

moving files

Time of First Successful Submission: 2025-11-05 09:20:05

copying files

Time of First Successful Submission: 2025-11-09 05:28:28

hidden files

Time of First Successful Submission: 2025-11-05 09:21:13

An Epic Filesystem Quest

Time of First Successful Submission: 2025-11-05 09:34:26

making directories

Time of First Successful Submission: 2025-11-05 09:39:03

finding files

Time of First Successful Submission: 2025-11-05 09:46:22

linking files

Time of First Successful Submission: 2025-11-05 10:13:45

Learning From Documentation

Time of First Successful Submission: 2025-11-05 13:10:28

Learning Complex Usage

Time of First Successful Submission: 2025-11-05 13:27:34

Reading Manuals

Time of First Successful Submission: 2025-11-05 14:38:06

Searching Manuals

Time of First Successful Submission: 2025-11-05 14:40:01

Searching For Manuals

Time of First Successful Submission: 2025-11-05 15:12:37

Helpful Programs

Time of First Successful Submission: 2025-11-05 15:17:44

Help for Builtins

Time of First Successful Submission: 2025-11-05 15:28:10

Matching with *

Time of First Successful Submission: 2025-11-07 10:33:36

Matching with ?

Time of First Successful Submission: 2025-11-07 10:35:09

Matching with []

Time of First Successful Submission: 2025-11-07 10:37:32

Matching paths with []

Time of First Successful Submission: 2025-11-07 10:39:58

Multiple globs

Time of First Successful Submission: 2025-11-07 10:42:41

Mixing globs

Time of First Successful Submission: 2025-11-07 11:11:30

Exclusionary globbing

Time of First Successful Submission: 2025-11-07 11:13:25

Tab completion

Time of First Successful Submission: 2025-11-07 14:20:25

Multiple options for tab completion

Time of First Successful Submission: 2025-11-07 14:22:32

Tab completion on commands

Time of First Successful Submission: 2025-11-07 14:25:42

Redirecting output

Time of First Successful Submission: 2025-11-07 14:41:20

Redirecting more output

Time of First Successful Submission: 2025-11-07 14:44:21

Appending output

Time of First Successful Submission: 2025-11-08 08:44:06

Redirecting errors

Time of First Successful Submission: 2025-11-08 12:50:43

Redirecting input

Time of First Successful Submission: 2025-11-08 14:43:49

Grepping stored results

Time of First Successful Submission: 2025-11-08 16:13:51

Grepping live output

Time of First Successful Submission: 2025-11-08 16:18:28

Grepping errors

Time of First Successful Submission: 2025-11-08 17:23:12

Filtering with grep -v

Time of First Successful Submission: 2025-11-08 18:11:16

Filtering with sed

Time of First Successful Submission: 2025-11-08 18:19:16

Duplicating piped data with tee

Time of First Successful Submission: 2025-11-09 06:12:53

Process substitution for input

Time of First Successful Submission: 2025-11-09 06:19:04

Writing to multiple programs

Time of First Successful Submission: 2025-11-09 17:19:13

Split-piping stderr and stdout

Time of First Successful Submission: 2025-11-09 17:33:44

Named pipes

Time of First Successful Submission: 2025-11-09 17:43:44

Printing Variables

Time of First Successful Submission: 2025-11-09 17:46:03

Setting Variables

Time of First Successful Submission: 2025-11-09 17:47:50

Multi-word Variables

Time of First Successful Submission: 2025-11-09 17:48:59

Exporting Variables

Time of First Successful Submission: 2025-11-09 17:58:26

Printing Exported Variables

Time of First Successful Submission: 2025-11-09 17:59:09

Storing Command Output

Time of First Successful Submission: 2025-11-09 18:01:09

Reading Input

Time of First Successful Submission: 2025-11-09 18:04:55

Reading Files

Time of First Successful Submission: 2025-11-09 18:06:53

Translating characters

Time of First Successful Submission: 2025-11-10 13:41:38

Deleting characters

Time of First Successful Submission: 2025-11-10 13:44:52

Deleting newlines

Time of First Successful Submission: 2025-11-10 13:47:14

Extracting the first lines with head

Time of First Successful Submission: 2025-11-10 13:53:05

Extracting specific sections of text

Time of First Successful Submission: 2025-11-10 13:56:40

Sorting data

Time of First Successful Submission: 2025-11-10 14:00:01

Listing Processes

Time of First Successful Submission: 2025-11-10 15:49:24

Killing Processes

Time of First Successful Submission: 2025-11-10 15:52:58

Interrupting Processes

Time of First Successful Submission: 2025-11-10 15:53:51

Killing Misbehaving Processes

Time of First Successful Submission: 2025-11-10 15:59:11

Suspending Processes

Time of First Successful Submission: 2025-11-10 16:01:43

Resuming Processes

Time of First Successful Submission: 2025-11-10 16:02:52

Backgrounding Processes

Time of First Successful Submission: 2025-11-10 16:07:12

Foregrounding Processes

Time of First Successful Submission: 2025-11-10 16:11:27

Starting Backgrounded Processes

Time of First Successful Submission: 2025-11-10 16:15:25

Process Exit Codes

Time of First Successful Submission: 2025-11-10 16:19:06

Becoming root with su

Time of First Successful Submission: 2025-11-11 14:42:49

Other users with su

Time of First Successful Submission: 2025-11-11 14:43:47

Cracking passwords

Time of First Successful Submission: 2025-11-11 14:51:14

Using sudo

Time of First Successful Submission: 2025-11-11 15:16:03

Changing File Ownership

Time of First Successful Submission: 2025-11-11 15:58:43

Groups and Files

Time of First Successful Submission: 2025-11-12 14:08:42

Fun With Groups Names

Time of First Successful Submission: 2025-11-12 14:11:27

Changing Permissions

Time of First Successful Submission: 2025-11-12 14:17:30

Executable Files

Time of First Successful Submission: 2025-11-12 14:23:35

Permission Tweaking Practice

Time of First Successful Submission: 2025-11-12 14:34:24

Permissions Setting Practice

Time of First Successful Submission: 2025-11-12 14:49:55

The SUID Bit

Time of First Successful Submission: 2025-11-12 14:54:48

Chaining with Semicolons

Time of First Successful Submission: 2025-11-14 13:16:06

Building on Success

Time of First Successful Submission: 2025-11-14 14:32:48

Handling Failure

Time of First Successful Submission: 2025-11-14 14:37:09

Your First Shell Script

Time of First Successful Submission: 2025-11-14 15:03:49

Redirecting Script Output

Time of First Successful Submission: 2025-11-14 15:12:35

Executable Shell Scripts

Time of First Successful Submission: 2025-11-14 15:20:09

Understanding Shebangs

Time of First Successful Submission: 2025-11-14 15:30:59

Scripting with Arguments

Time of First Successful Submission: 2025-11-14 15:35:49

Scripting with Conditionals

Time of First Successful Submission: 2025-11-14 15:40:50

Scripting with Default Cases

Time of First Successful Submission: 2025-11-14 15:41:59

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-11-14 15:46:10

Reading Shell Scripts

Time of First Successful Submission: 2025-11-14 15:53:30

Launching Screen

Time of First Successful Submission: 2025-11-14 16:02:46

Detaching and Attaching

Time of First Successful Submission: 2025-11-15 15:58:40

Finding Sessions

Time of First Successful Submission: 2025-11-15 16:03:15

Switching Windows

Time of First Successful Submission: 2025-11-15 16:16:47

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-11-15 16:18:35

Switching Windows (tmux)

Time of First Successful Submission: 2025-11-15 16:21:41

The PATH Variable

Time of First Successful Submission: 2025-11-15 16:27:53

Setting PATH

Time of First Successful Submission: 2025-11-15 16:30:38

Finding Commands

Time of First Successful Submission: 2025-11-15 16:32:46

Adding Commands

Time of First Successful Submission: 2025-11-16 08:29:27

Hijacking Commands

Time of First Successful Submission: 2025-11-16 09:12:46

Bashrc Backdoor

Time of First Successful Submission: 2025-11-16 16:15:26

Sniffing Input

Time of First Successful Submission: 2025-11-16 16:47:11

Overshared Directories

Time of First Successful Submission: 2025-11-17 13:55:14

Tricky Linking

Time of First Successful Submission: 2025-11-17 15:10:23

Sniffing Process Arguments

Time of First Successful Submission: 2025-11-17 15:22:45

Snooping on Configurations

Time of First Successful Submission: 2025-11-17 15:30:29

The Fork Bomb

Time of First Successful Submission: 2025-11-18 16:10:38

Disk-Space Doomsday

Time of First Successful Submission: 2025-11-20 10:17:22

rm -rf /

Time of First Successful Submission: 2025-11-24 14:41:08

Life after rm -rf /

Time of First Successful Submission: 2025-11-24 15:03:36

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-11-24 15:07:36

Computing 101

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Your First Register

Time of First Successful Submission: 2025-12-15 17:08:28

Your First Syscall

Time of First Successful Submission: 2025-12-22 14:06:55

Exit Codes

Time of First Successful Submission: 2025-12-22 14:26:28

Building Executables

Time of First Successful Submission: 2025-12-23 09:43:17

Moving Between Registers

Time of First Successful Submission: 2025-12-23 09:53:45

Loading From Memory

Time of First Successful Submission: 2025-12-23 10:20:53

More Loading Practice

Time of First Successful Submission: 2025-12-23 10:21:37

Dereferencing Pointers

Time of First Successful Submission: 2025-12-23 10:32:04

Dereferencing Yourself

Time of First Successful Submission: 2025-12-23 10:34:47

Dereferencing with Offsets

Time of First Successful Submission: 2025-12-23 10:37:09

Stored Addresses

Time of First Successful Submission: 2025-12-23 10:40:42

Double Dereference

Time of First Successful Submission: 2025-12-23 10:45:48

Tracing Syscalls

Time of First Successful Submission: 2025-12-23 09:58:31

Starting GDB

Time of First Successful Submission: 2025-12-23 10:03:26

Starting Programs in GDB

Time of First Successful Submission: 2025-12-23 10:08:27

Writing Output

Time of First Successful Submission: 2025-12-23 15:28:22

Chaining Syscalls

Time of First Successful Submission: 2025-12-23 15:30:46

Writing Strings

Time of First Successful Submission: 2025-12-23 15:33:21

Reading Data

Time of First Successful Submission: 2025-12-23 15:53:09

set-register

Time of First Successful Submission: 2025-12-23 16:01:29

set-multiple-registers

Time of First Successful Submission: 2025-12-23 16:15:06

add-to-register

Time of First Successful Submission: 2025-12-23 16:27:13

linear-equation-registers

Time of First Successful Submission: 2025-12-23 16:30:10

integer-division

Time of First Successful Submission: 2025-12-25 06:42:46

modulo-operation

Time of First Successful Submission: 2025-12-25 06:45:11

set-upper-byte

Time of First Successful Submission: 2025-12-25 06:49:01

efficient-modulo

Time of First Successful Submission: 2025-12-25 07:23:08

byte-extraction

Time of First Successful Submission: 2025-12-25 07:55:56

bitwise-and

Time of First Successful Submission: 2025-12-25 08:05:25

check-even

Time of First Successful Submission: 2025-12-25 09:10:54

memory-read

Time of First Successful Submission: 2025-12-25 09:17:14

memory-write

Time of First Successful Submission: 2025-12-25 09:19:08

memory-increment

Time of First Successful Submission: 2025-12-25 09:30:50

byte-access

Time of First Successful Submission: 2025-12-25 09:34:00

memory-size-access

Time of First Successful Submission: 2025-12-25 09:36:57

little-endian-write

Time of First Successful Submission: 2025-12-25 09:51:00

memory-sum

Time of First Successful Submission: 2025-12-25 10:06:27

stack-subtraction

Time of First Successful Submission: 2025-12-25 13:08:57

swap-stack-values

Time of First Successful Submission: 2025-12-25 13:10:06

average-stack-values

Time of First Successful Submission: 2025-12-25 13:20:15

absolute-jump

Time of First Successful Submission: 2025-12-25 13:34:30

relative-jump

Time of First Successful Submission: 2025-12-25 14:03:45

jump-trampoline

Time of First Successful Submission: 2025-12-25 14:10:59

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-11-03 15:11:42

Using the VSCode Workspace

Time of First Successful Submission: 2025-11-03 15:14:05

Using the GUI Desktop

Time of First Successful Submission: 2025-11-03 15:20:09

Pasting into the Desktop

Time of First Successful Submission: 2025-11-03 15:25:36

Restarting Challenges

Time of First Successful Submission: 2025-11-03 15:28:03

Getting Help

Time of First Successful Submission: 2025-11-03 16:22:42

Challenge Programs

Time of First Successful Submission: 2025-11-10 16:22:28