Joker0_0

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-06-07 07:50:00

Command Arguments

Time of First Successful Submission: 2025-10-12 03:51:06

Command History

Time of First Successful Submission: 2025-10-12 03:52:51

The Root Path

Time of First Successful Submission: 2025-10-12 03:58:17

Absolute Paths

Time of First Successful Submission: 2025-10-12 04:00:21

Changing position

Time of First Successful Submission: 2025-10-12 04:05:10

Changing to an Absolute Path

Time of First Successful Submission: 2025-10-12 04:08:15

Relative Paths

Time of First Successful Submission: 2025-10-12 04:13:44

Cat

Time of First Successful Submission: 2025-10-17 04:47:13

Ls

Time of First Successful Submission: 2025-10-17 05:07:00

Ls All

Time of First Successful Submission: 2025-10-17 05:12:18

Find

Time of First Successful Submission: 2025-10-17 05:24:09

Piping Echo

Time of First Successful Submission: 2025-12-14 05:29:43

Piping Stdout

Time of First Successful Submission: 2025-12-14 05:35:55

Piping Stdin

Time of First Successful Submission: 2025-12-14 06:02:38


Start Here

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Using the Terminal

Time of First Successful Submission: 2025-10-12 01:41:47

Using the VSCode Workspace

Time of First Successful Submission: 2025-10-12 01:46:33

Using the GUI Desktop

Time of First Successful Submission: 2025-10-12 01:49:19

Pasting into the Desktop

Time of First Successful Submission: 2025-10-12 01:51:19

Restarting Challenges

Time of First Successful Submission: 2025-10-12 01:55:43

Challenge Programs

Time of First Successful Submission: 2025-10-12 02:04:06

The Flag File

Time of First Successful Submission: 2025-10-12 02:11:48

Using Privileged Mode

Time of First Successful Submission: 2025-10-12 02:28:38

Persistent Home Directories - One

Time of First Successful Submission: 2025-10-12 03:30:36

Persistent Home Directories - Two

Time of First Successful Submission: 2025-10-12 03:32:59


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-06-07 07:50:00

Intro to Arguments

Time of First Successful Submission: 2025-10-12 03:51:06

Command History

Time of First Successful Submission: 2025-10-12 03:52:51

The Root

Time of First Successful Submission: 2025-10-12 03:58:17

Program and absolute paths

Time of First Successful Submission: 2025-10-12 04:00:21

Position thy self

Time of First Successful Submission: 2025-10-12 04:05:10

Position elsewhere

Time of First Successful Submission: 2025-10-12 04:08:15

implicit relative paths, from /

Time of First Successful Submission: 2025-10-12 04:13:44

explicit relative paths, from /

Time of First Successful Submission: 2025-10-12 04:18:01

implicit relative path

Time of First Successful Submission: 2025-10-12 04:24:51

home sweet home

Time of First Successful Submission: 2025-10-12 04:36:50

cat: not the pet, but the command!

Time of First Successful Submission: 2025-10-17 04:47:13

catting absolute paths

Time of First Successful Submission: 2025-10-17 04:48:09

more catting practice

Time of First Successful Submission: 2025-10-17 04:51:42

grepping for a needle in a haystack

Time of First Successful Submission: 2025-10-17 04:54:02

comparing files

Time of First Successful Submission: 2025-10-17 04:59:14

listing files

Time of First Successful Submission: 2025-10-17 05:07:00

touching files

Time of First Successful Submission: 2025-10-17 05:08:40

removing files

Time of First Successful Submission: 2025-10-17 05:09:57

moving files

Time of First Successful Submission: 2025-10-17 05:11:12

copying files

Time of First Successful Submission: 2025-11-14 18:51:35

hidden files

Time of First Successful Submission: 2025-10-17 05:12:18

An Epic Filesystem Quest

Time of First Successful Submission: 2025-10-17 05:20:07

making directories

Time of First Successful Submission: 2025-10-17 05:21:06

finding files

Time of First Successful Submission: 2025-10-17 05:24:09

linking files

Time of First Successful Submission: 2025-10-17 05:44:04

Learning From Documentation

Time of First Successful Submission: 2025-10-20 09:18:11

Learning Complex Usage

Time of First Successful Submission: 2025-10-20 09:21:40

Reading Manuals

Time of First Successful Submission: 2025-10-20 09:28:41

Searching Manuals

Time of First Successful Submission: 2025-10-20 09:31:37

Searching For Manuals

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

Helpful Programs

Time of First Successful Submission: 2025-10-20 10:11:52

Help for Builtins

Time of First Successful Submission: 2025-10-20 10:19:38

Matching with *

Time of First Successful Submission: 2025-11-14 19:27:29

Matching with ?

Time of First Successful Submission: 2025-11-16 19:32:29

Matching with []

Time of First Successful Submission: 2025-11-16 19:37:52

Matching paths with []

Time of First Successful Submission: 2025-11-16 19:41:06

Multiple globs

Time of First Successful Submission: 2025-11-16 19:47:07

Mixing globs

Time of First Successful Submission: 2025-11-16 19:52:46

Exclusionary globbing

Time of First Successful Submission: 2025-11-16 19:58:39

Tab completion

Time of First Successful Submission: 2025-11-16 20:03:50

Multiple options for tab completion

Time of First Successful Submission: 2025-11-16 20:16:22

Tab completion on commands

Time of First Successful Submission: 2025-11-16 20:17:24

Redirecting output

Time of First Successful Submission: 2025-12-14 05:29:43

Redirecting more output

Time of First Successful Submission: 2025-12-14 05:35:55

Appending output

Time of First Successful Submission: 2025-12-14 05:38:59

Redirecting errors

Time of First Successful Submission: 2025-12-14 05:52:36

Redirecting input

Time of First Successful Submission: 2025-12-14 06:02:38

Grepping stored results

Time of First Successful Submission: 2025-12-14 06:05:56

Grepping live output

Time of First Successful Submission: 2025-12-14 06:10:39

Grepping errors

Time of First Successful Submission: 2025-12-14 06:17:20

Filtering with grep -v

Time of First Successful Submission: 2025-12-14 22:23:59

Filtering with sed

Time of First Successful Submission: 2025-12-14 22:27:27

Duplicating piped data with tee

Time of First Successful Submission: 2025-12-14 23:37:59

Process substitution for input

Time of First Successful Submission: 2025-12-14 23:57:01

Writing to multiple programs

Time of First Successful Submission: 2025-12-15 00:20:23

Split-piping stderr and stdout

Time of First Successful Submission: 2025-12-15 00:37:07

Named pipes

Time of First Successful Submission: 2025-12-15 00:48:55

Printing Variables

Time of First Successful Submission: 2025-12-15 01:25:58

Setting Variables

Time of First Successful Submission: 2025-12-15 01:28:15

Multi-word Variables

Time of First Successful Submission: 2025-12-15 01:29:40

Exporting Variables

Time of First Successful Submission: 2025-12-15 01:34:21

Printing Exported Variables

Time of First Successful Submission: 2025-12-15 01:35:22

Storing Command Output

Time of First Successful Submission: 2025-12-15 01:38:44

Reading Input

Time of First Successful Submission: 2025-12-15 01:43:29

Reading Files

Time of First Successful Submission: 2025-12-15 01:47:56

Translating characters

Time of First Successful Submission: 2025-12-15 02:05:41

Deleting characters

Time of First Successful Submission: 2025-12-15 02:09:29

Deleting newlines

Time of First Successful Submission: 2025-12-15 02:25:12

Extracting the first lines with head

Time of First Successful Submission: 2025-12-15 02:32:00

Extracting specific sections of text

Time of First Successful Submission: 2025-12-15 03:01:06

Sorting data

Time of First Successful Submission: 2025-12-15 03:02:50

Listing Processes

Time of First Successful Submission: 2026-01-08 06:35:02

Killing Processes

Time of First Successful Submission: 2026-01-08 06:40:15

Interrupting Processes

Time of First Successful Submission: 2026-01-08 06:43:42

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-08 06:48:57

Suspending Processes

Time of First Successful Submission: 2026-01-08 06:51:41

Resuming Processes

Time of First Successful Submission: 2026-01-08 06:53:29

Backgrounding Processes

Time of First Successful Submission: 2026-01-08 07:02:54

Foregrounding Processes

Time of First Successful Submission: 2026-01-08 07:05:39

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-08 07:07:24

Process Exit Codes

Time of First Successful Submission: 2026-01-08 07:10:17

Becoming root with su

Time of First Successful Submission: 2026-01-08 08:12:06

Other users with su

Time of First Successful Submission: 2026-01-08 08:13:37

Cracking passwords

Time of First Successful Submission: 2026-01-08 08:29:34

Using sudo

Time of First Successful Submission: 2026-01-08 08:36:10

Changing File Ownership

Time of First Successful Submission: 2026-01-09 07:30:11

Groups and Files

Time of First Successful Submission: 2026-01-09 07:36:09

Fun With Groups Names

Time of First Successful Submission: 2026-01-09 07:38:58

Changing Permissions

Time of First Successful Submission: 2026-01-09 07:41:30

Executable Files

Time of First Successful Submission: 2026-01-09 07:47:08

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-09 07:55:16

Permissions Setting Practice

Time of First Successful Submission: 2026-01-09 08:02:52

The SUID Bit

Time of First Successful Submission: 2026-01-09 08:15:13

Chaining with Semicolons

Time of First Successful Submission: 2026-01-10 12:00:40

Building on Success

Time of First Successful Submission: 2026-01-10 12:09:00

Handling Failure

Time of First Successful Submission: 2026-01-10 12:15:46

Your First Shell Script

Time of First Successful Submission: 2026-01-10 15:02:36

Redirecting Script Output

Time of First Successful Submission: 2026-01-10 15:06:24

Executable Shell Scripts

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

Understanding Shebangs

Time of First Successful Submission: 2026-01-10 21:01:44

Scripting with Arguments

Time of First Successful Submission: 2026-01-10 21:16:36

Scripting with Conditionals

Time of First Successful Submission: 2026-01-10 21:20:59

Scripting with Default Cases

Time of First Successful Submission: 2026-01-10 21:23:25

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-10 21:28:10

Reading Shell Scripts

Time of First Successful Submission: 2026-01-10 21:32:00

Launching Screen

Time of First Successful Submission: 2026-01-11 12:31:20

Detaching and Attaching

Time of First Successful Submission: 2026-01-11 12:34:19

Finding Sessions

Time of First Successful Submission: 2026-01-11 12:39:14

Switching Windows

Time of First Successful Submission: 2026-01-11 12:42:43

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-11 12:45:46

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-11 12:47:46

The PATH Variable

Time of First Successful Submission: 2026-01-11 20:53:01

Setting PATH

Time of First Successful Submission: 2026-01-11 20:57:05

Finding Commands

Time of First Successful Submission: 2026-01-11 21:02:21

Adding Commands

Time of First Successful Submission: 2026-01-11 21:09:33

Hijacking Commands

Time of First Successful Submission: 2026-01-11 21:46:03

Bashrc Backdoor

Time of First Successful Submission: 2026-01-12 09:36:33

Sniffing Input

Time of First Successful Submission: 2026-01-12 10:13:37

Overshared Directories

Time of First Successful Submission: 2026-01-12 11:03:33

Tricky Linking

Time of First Successful Submission: 2026-01-12 11:35:33

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-12 11:53:56

Snooping on Configurations

Time of First Successful Submission: 2026-01-12 12:03:11

The Fork Bomb

Time of First Successful Submission: 2026-01-13 11:42:23

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-13 11:46:53

rm -rf /

Time of First Successful Submission: 2026-01-13 11:51:29

Life after rm -rf /

Time of First Successful Submission: 2026-01-13 12:01:15

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-13 12:20:08


CybHer Dojo

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Using the Terminal

Time of First Successful Submission: 2025-10-12 01:41:47

Using the VSCode Workspace

Time of First Successful Submission: 2025-10-12 01:46:33

Using the GUI Desktop

Time of First Successful Submission: 2025-10-12 01:49:19

Pasting into the Desktop

Time of First Successful Submission: 2025-10-12 01:51:19

Connecting over SSH

Time of First Successful Submission: 2025-11-18 07:02:44

Restarting Challenges

Time of First Successful Submission: 2025-10-12 01:55:43

Getting Help

Time of First Successful Submission: 2025-10-12 01:59:41

Challenge Programs

Time of First Successful Submission: 2025-10-12 02:04:06

The Flag File

Time of First Successful Submission: 2025-10-12 02:11:48

Using Privileged Mode

Time of First Successful Submission: 2025-10-12 02:28:38

Persistent Home Directories - One

Time of First Successful Submission: 2025-10-12 03:30:36

Persistent Home Directories - Two

Time of First Successful Submission: 2025-10-12 03:32:59


GCA CTF

12 / 104 299 / 37713


Using the Terminal

Time of First Successful Submission: 2025-10-12 01:41:47

Using the VSCode Workspace

Time of First Successful Submission: 2025-10-12 01:46:33

Using the GUI Desktop

Time of First Successful Submission: 2025-10-12 01:49:19

Pasting into the Desktop

Time of First Successful Submission: 2025-10-12 01:51:19

Connecting over SSH

Time of First Successful Submission: 2025-11-18 07:02:44

Restarting Challenges

Time of First Successful Submission: 2025-10-12 01:55:43

Getting Help

Time of First Successful Submission: 2025-10-12 01:59:41

Challenge Programs

Time of First Successful Submission: 2025-10-12 02:04:06

The Flag File

Time of First Successful Submission: 2025-10-12 02:11:48

Using Privileged Mode

Time of First Successful Submission: 2025-10-12 02:28:38

Persistent Home Directories - One

Time of First Successful Submission: 2025-10-12 03:30:36

Persistent Home Directories - Two

Time of First Successful Submission: 2025-10-12 03:32:59