charco_melonn_meowuiik

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-09-18 12:42:46

Command Arguments

Time of First Successful Submission: 2025-09-18 12:43:16

Command History

Time of First Successful Submission: 2025-09-18 12:43:49

The Root Path

Time of First Successful Submission: 2026-02-27 14:00:59

Absolute Paths

Time of First Successful Submission: 2026-02-27 14:19:50

Changing position

Time of First Successful Submission: 2026-02-27 14:21:54

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-27 14:23:46

Relative Paths

Time of First Successful Submission: 2026-02-27 14:25:29

Cat

Time of First Successful Submission: 2026-02-28 01:59:55

Ls

Time of First Successful Submission: 2026-02-28 12:49:24

Ls All

Time of First Successful Submission: 2026-02-28 12:56:39

Find

Time of First Successful Submission: 2026-02-28 13:06:33

Piping Echo

Time of First Successful Submission: 2026-03-01 09:36:16

Piping Stdout

Time of First Successful Submission: 2026-03-01 09:37:39

Piping Stdin

Time of First Successful Submission: 2026-03-01 09:43:39


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-27 10:42:29

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-27 10:44:19

Using the GUI Desktop

Time of First Successful Submission: 2026-02-27 10:47:14

Pasting into the Desktop

Time of First Successful Submission: 2026-02-27 10:50:54

Restarting Challenges

Time of First Successful Submission: 2026-02-27 12:24:28

Challenge Programs

Time of First Successful Submission: 2026-03-06 10:10:22

The Flag File

Time of First Successful Submission: 2026-03-06 10:11:11

Using Privileged Mode

Time of First Successful Submission: 2026-03-07 08:11:05

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-07 08:15:43

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-07 08:17:28


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-09-18 12:42:46

Intro to Arguments

Time of First Successful Submission: 2025-09-18 12:43:16

Command History

Time of First Successful Submission: 2025-09-18 12:43:49

The Root

Time of First Successful Submission: 2026-02-27 14:00:59

Program and absolute paths

Time of First Successful Submission: 2026-02-27 14:19:50

Position thy self

Time of First Successful Submission: 2026-02-27 14:21:54

Position elsewhere

Time of First Successful Submission: 2026-02-27 14:23:46

implicit relative paths, from /

Time of First Successful Submission: 2026-02-27 14:25:29

explicit relative paths, from /

Time of First Successful Submission: 2026-02-27 14:27:16

implicit relative path

Time of First Successful Submission: 2026-02-27 14:33:22

home sweet home

Time of First Successful Submission: 2026-02-27 14:45:47

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-28 01:59:55

catting absolute paths

Time of First Successful Submission: 2026-02-28 02:00:53

more catting practice

Time of First Successful Submission: 2026-02-28 02:05:36

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-28 02:06:41

comparing files

Time of First Successful Submission: 2026-02-28 02:08:26

listing files

Time of First Successful Submission: 2026-02-28 12:49:24

touching files

Time of First Successful Submission: 2026-02-28 12:50:41

removing files

Time of First Successful Submission: 2026-02-28 12:51:54

moving files

Time of First Successful Submission: 2026-02-28 12:53:24

copying files

Time of First Successful Submission: 2026-02-28 12:55:03

hidden files

Time of First Successful Submission: 2026-02-28 12:56:39

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-28 13:01:31

making directories

Time of First Successful Submission: 2026-02-28 13:02:48

finding files

Time of First Successful Submission: 2026-02-28 13:06:33

linking files

Time of First Successful Submission: 2026-03-01 05:08:06

Learning From Documentation

Time of First Successful Submission: 2026-03-01 05:10:13

Learning Complex Usage

Time of First Successful Submission: 2026-03-01 05:11:54

Reading Manuals

Time of First Successful Submission: 2026-03-01 09:05:01

Searching Manuals

Time of First Successful Submission: 2026-03-01 09:07:01

Searching For Manuals

Time of First Successful Submission: 2026-03-01 09:11:22

Helpful Programs

Time of First Successful Submission: 2026-03-01 09:12:44

Help for Builtins

Time of First Successful Submission: 2026-03-01 09:14:22

Matching with *

Time of First Successful Submission: 2026-03-01 09:16:41

Matching with ?

Time of First Successful Submission: 2026-03-01 09:17:58

Matching with []

Time of First Successful Submission: 2026-03-01 09:19:25

Matching paths with []

Time of First Successful Submission: 2026-03-01 09:20:12

Multiple globs

Time of First Successful Submission: 2026-03-01 09:21:50

Mixing globs

Time of First Successful Submission: 2026-03-01 09:25:12

Exclusionary globbing

Time of First Successful Submission: 2026-03-01 09:26:55

Tab completion

Time of First Successful Submission: 2026-03-01 09:27:59

Multiple options for tab completion

Time of First Successful Submission: 2026-03-01 09:33:54

Tab completion on commands

Time of First Successful Submission: 2026-03-01 09:34:28

Redirecting output

Time of First Successful Submission: 2026-03-01 09:36:16

Redirecting more output

Time of First Successful Submission: 2026-03-01 09:37:39

Appending output

Time of First Successful Submission: 2026-03-01 09:40:23

Redirecting errors

Time of First Successful Submission: 2026-03-01 09:42:23

Redirecting input

Time of First Successful Submission: 2026-03-01 09:43:39

Grepping stored results

Time of First Successful Submission: 2026-03-01 09:44:46

Grepping live output

Time of First Successful Submission: 2026-03-01 09:45:49

Grepping errors

Time of First Successful Submission: 2026-03-01 09:47:19

Filtering with grep -v

Time of First Successful Submission: 2026-03-01 09:48:18

Filtering with sed

Time of First Successful Submission: 2026-03-01 09:52:05

Duplicating piped data with tee

Time of First Successful Submission: 2026-03-01 09:54:57

Process substitution for input

Time of First Successful Submission: 2026-03-01 15:42:27

Writing to multiple programs

Time of First Successful Submission: 2026-03-01 15:52:10

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-01 16:08:32

Named pipes

Time of First Successful Submission: 2026-03-01 16:12:34

Printing Variables

Time of First Successful Submission: 2026-03-02 10:35:47

Setting Variables

Time of First Successful Submission: 2026-03-02 10:36:51

Multi-word Variables

Time of First Successful Submission: 2026-03-02 10:37:55

Exporting Variables

Time of First Successful Submission: 2026-03-02 10:40:39

Printing Exported Variables

Time of First Successful Submission: 2026-03-02 10:41:14

Storing Command Output

Time of First Successful Submission: 2026-03-02 10:42:35

Reading Input

Time of First Successful Submission: 2026-03-02 10:47:49

Reading Files

Time of First Successful Submission: 2026-03-02 11:03:53

Translating characters

Time of First Successful Submission: 2026-03-02 14:45:51

Deleting characters

Time of First Successful Submission: 2026-03-02 15:08:57

Deleting newlines

Time of First Successful Submission: 2026-03-02 15:09:57

Extracting the first lines with head

Time of First Successful Submission: 2026-03-02 15:10:57

Extracting specific sections of text

Time of First Successful Submission: 2026-03-02 15:18:18

Sorting data

Time of First Successful Submission: 2026-03-03 16:06:26

Listing Processes

Time of First Successful Submission: 2026-03-04 13:14:19

Killing Processes

Time of First Successful Submission: 2026-03-03 16:09:27

Interrupting Processes

Time of First Successful Submission: 2026-03-04 13:35:21

Killing Misbehaving Processes

Time of First Successful Submission: 2026-03-07 04:08:32

Suspending Processes

Time of First Successful Submission: 2026-03-08 02:40:16

Resuming Processes

Time of First Successful Submission: 2026-03-08 02:42:47

Backgrounding Processes

Time of First Successful Submission: 2026-03-08 02:44:53

Foregrounding Processes

Time of First Successful Submission: 2026-03-08 02:49:30

Starting Backgrounded Processes

Time of First Successful Submission: 2026-03-08 02:53:06

Process Exit Codes

Time of First Successful Submission: 2026-03-08 02:56:10

Becoming root with su

Time of First Successful Submission: 2026-03-08 03:06:50

Other users with su

Time of First Successful Submission: 2026-03-08 03:17:51

Cracking passwords

Time of First Successful Submission: 2026-03-08 03:21:25

Using sudo

Time of First Successful Submission: 2026-03-08 04:00:38

Changing File Ownership

Time of First Successful Submission: 2026-03-14 03:27:27

Groups and Files

Time of First Successful Submission: 2026-03-14 08:53:59

Fun With Groups Names

Time of First Successful Submission: 2026-03-14 08:54:50

Changing Permissions

Time of First Successful Submission: 2026-03-14 09:14:32

Executable Files

Time of First Successful Submission: 2026-03-14 09:15:41

Permission Tweaking Practice

Time of First Successful Submission: 2026-03-15 04:01:44

Permissions Setting Practice

Time of First Successful Submission: 2026-03-15 04:08:24

The SUID Bit

Time of First Successful Submission: 2026-03-15 04:09:50

Chaining with Semicolons

Time of First Successful Submission: 2026-03-15 04:12:04

Building on Success

Time of First Successful Submission: 2026-03-15 04:14:03

Handling Failure

Time of First Successful Submission: 2026-03-15 08:28:50

Your First Shell Script

Time of First Successful Submission: 2026-03-15 08:35:45

Redirecting Script Output

Time of First Successful Submission: 2026-03-15 08:37:53

Executable Shell Scripts

Time of First Successful Submission: 2026-03-15 08:39:18

Understanding Shebangs

Time of First Successful Submission: 2026-03-15 08:43:20

Scripting with Arguments

Time of First Successful Submission: 2026-03-15 08:45:57

Scripting with Conditionals

Time of First Successful Submission: 2026-03-15 08:50:21

Scripting with Default Cases

Time of First Successful Submission: 2026-03-15 08:52:12

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-16 14:10:34

Reading Shell Scripts

Time of First Successful Submission: 2026-03-16 14:12:49

Launching Screen

Time of First Successful Submission: 2026-03-16 14:14:12

Detaching and Attaching

Time of First Successful Submission: 2026-03-16 14:15:58

Finding Sessions

Time of First Successful Submission: 2026-03-16 14:21:45

Switching Windows

Time of First Successful Submission: 2026-03-16 14:24:24

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-16 14:25:46

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-17 03:54:07

The PATH Variable

Time of First Successful Submission: 2026-03-16 14:54:48

Setting PATH

Time of First Successful Submission: 2026-03-17 03:57:41

Finding Commands

Time of First Successful Submission: 2026-03-17 03:59:10

Adding Commands

Time of First Successful Submission: 2026-03-17 14:10:21

Hijacking Commands

Time of First Successful Submission: 2026-03-17 14:18:43

Bashrc Backdoor

Time of First Successful Submission: 2026-03-17 14:29:27

Sniffing Input

Time of First Successful Submission: 2026-03-22 08:35:48

Overshared Directories

Time of First Successful Submission: 2026-03-22 08:40:26

Tricky Linking

Time of First Successful Submission: 2026-03-22 08:47:48

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-22 09:08:23

Snooping on Configurations

Time of First Successful Submission: 2026-03-22 09:10:51

The Fork Bomb

Time of First Successful Submission: 2026-03-22 10:11:37

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-22 10:15:47

rm -rf /

Time of First Successful Submission: 2026-03-22 10:18:33

Life after rm -rf /

Time of First Successful Submission: 2026-03-22 10:27:27

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-22 10:30:24


Computing 101

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Your First Register

Time of First Successful Submission: 2025-04-02 13:26:09

Your First Syscall

Time of First Successful Submission: 2025-04-02 13:37:01

Exit Codes

Time of First Successful Submission: 2025-04-28 14:02:10

Building Executables

Time of First Successful Submission: 2026-03-28 13:17:20

Moving Between Registers

Time of First Successful Submission: 2026-03-28 13:25:34

Loading From Memory

Time of First Successful Submission: 2026-03-29 03:23:45

More Loading Practice

Time of First Successful Submission: 2026-03-29 03:25:54

Dereferencing Pointers

Time of First Successful Submission: 2026-03-29 03:41:11

Dereferencing Yourself

Time of First Successful Submission: 2026-03-29 03:42:40

Dereferencing with Offsets

Time of First Successful Submission: 2026-03-29 03:44:13

Stored Addresses

Time of First Successful Submission: 2026-03-29 03:45:55

Double Dereference

Time of First Successful Submission: 2026-03-29 03:47:30

The Stack

Time of First Successful Submission: 2026-03-29 03:49:49

Stack Offsets

Time of First Successful Submission: 2026-03-29 03:51:10

Program Arguments on the Stack

Time of First Successful Submission: 2026-03-29 03:52:48

Popping From the Stack

Time of First Successful Submission: 2026-03-29 03:56:09

Disassembling Programs

Time of First Successful Submission: 2026-03-29 09:34:55

Tracing Syscalls

Time of First Successful Submission: 2026-03-29 09:37:18

Starting GDB

Time of First Successful Submission: 2026-03-29 09:38:54

Quitting GDB

Time of First Successful Submission: 2026-03-29 09:39:50

Starting Programs in GDB

Time of First Successful Submission: 2026-03-29 09:41:12

Disassembling in GDB

Time of First Successful Submission: 2026-03-29 09:42:23

Stepping Through Instructions

Time of First Successful Submission: 2026-03-29 09:44:17

Reading Register Values

Time of First Successful Submission: 2026-03-29 09:45:20

Popping Stack Values

Time of First Successful Submission: 2026-03-29 09:46:38

Examining Memory

Time of First Successful Submission: 2026-03-29 09:48:08

Examining Stack Pointers

Time of First Successful Submission: 2026-03-29 09:53:07

Cooperative Debugging

Time of First Successful Submission: 2026-04-05 07:01:46

Writing Output

Time of First Successful Submission: 2026-04-05 07:26:47

Chaining Syscalls

Time of First Successful Submission: 2026-04-05 07:28:19

Writing Strings

Time of First Successful Submission: 2026-04-05 07:29:44

Reading Data

Time of First Successful Submission: 2026-04-05 07:33:28


GCA CTF

10 / 104 19787 / 43659


Using the Terminal

Time of First Successful Submission: 2026-02-27 10:42:29

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-27 10:44:19

Using the GUI Desktop

Time of First Successful Submission: 2026-02-27 10:47:14

Pasting into the Desktop

Time of First Successful Submission: 2026-02-27 10:50:54

Restarting Challenges

Time of First Successful Submission: 2026-02-27 12:24:28

Challenge Programs

Time of First Successful Submission: 2026-03-06 10:10:22

The Flag File

Time of First Successful Submission: 2026-03-06 10:11:11

Using Privileged Mode

Time of First Successful Submission: 2026-03-07 08:11:05

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-07 08:15:43

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-07 08:17:28