davy_d_xebec

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-02-04 16:03:53

Command Arguments

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Command History

Time of First Successful Submission: 2026-02-04 16:06:45

The Root Path

Time of First Successful Submission: 2026-02-05 14:10:13

Absolute Paths

Time of First Successful Submission: 2026-02-05 14:19:49

Changing position

Time of First Successful Submission: 2026-02-05 14:21:43

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-05 14:24:04

Relative Paths

Time of First Successful Submission: 2026-02-05 14:27:10

Cat

Time of First Successful Submission: 2026-02-05 14:57:23

Ls

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Ls All

Time of First Successful Submission: 2026-02-05 15:14:55

Find

Time of First Successful Submission: 2026-02-05 16:51:23

Piping Echo

Time of First Successful Submission: 2026-02-08 06:48:52

Piping Stdout

Time of First Successful Submission: 2026-02-08 07:00:44

Piping Stdin

Time of First Successful Submission: 2026-02-09 10:08:05


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-04 15:25:16

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-04 15:28:36

Using the GUI Desktop

Time of First Successful Submission: 2026-02-04 15:30:28

Pasting into the Desktop

Time of First Successful Submission: 2026-02-04 15:33:17

Restarting Challenges

Time of First Successful Submission: 2026-02-04 15:35:43

Challenge Programs

Time of First Successful Submission: 2026-02-14 14:05:06

The Flag File

Time of First Successful Submission: 2026-02-14 14:06:19

Using Privileged Mode

Time of First Successful Submission: 2026-02-14 14:15:38

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-14 14:18:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-14 14:21:20


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-02-04 16:03:53

Intro to Arguments

Time of First Successful Submission: 2026-02-04 16:05:47

Command History

Time of First Successful Submission: 2026-02-04 16:06:45

The Root

Time of First Successful Submission: 2026-02-05 14:10:13

Program and absolute paths

Time of First Successful Submission: 2026-02-05 14:19:49

Position thy self

Time of First Successful Submission: 2026-02-05 14:21:43

Position elsewhere

Time of First Successful Submission: 2026-02-05 14:24:04

implicit relative paths, from /

Time of First Successful Submission: 2026-02-05 14:27:10

explicit relative paths, from /

Time of First Successful Submission: 2026-02-05 14:32:24

implicit relative path

Time of First Successful Submission: 2026-02-05 14:34:08

home sweet home

Time of First Successful Submission: 2026-02-05 14:55:30

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-05 14:57:23

catting absolute paths

Time of First Successful Submission: 2026-02-05 14:58:11

more catting practice

Time of First Successful Submission: 2026-02-05 14:59:27

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-05 15:01:36

comparing files

Time of First Successful Submission: 2026-02-05 15:03:42

listing files

Time of First Successful Submission: 2026-02-05 15:06:07

touching files

Time of First Successful Submission: 2026-02-05 15:08:36

removing files

Time of First Successful Submission: 2026-02-05 15:09:45

moving files

Time of First Successful Submission: 2026-02-05 15:11:34

copying files

Time of First Successful Submission: 2026-02-05 15:12:39

hidden files

Time of First Successful Submission: 2026-02-05 15:14:55

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-05 15:25:03

making directories

Time of First Successful Submission: 2026-02-05 15:26:44

finding files

Time of First Successful Submission: 2026-02-05 16:51:23

linking files

Time of First Successful Submission: 2026-02-05 17:16:27

Learning From Documentation

Time of First Successful Submission: 2026-02-14 18:33:46

Learning Complex Usage

Time of First Successful Submission: 2026-02-14 18:35:20

Reading Manuals

Time of First Successful Submission: 2026-02-14 18:38:51

Searching Manuals

Time of First Successful Submission: 2026-02-14 18:45:53

Searching For Manuals

Time of First Successful Submission: 2026-02-14 18:56:13

Helpful Programs

Time of First Successful Submission: 2026-02-14 18:57:49

Help for Builtins

Time of First Successful Submission: 2026-02-14 18:59:41

Matching with *

Time of First Successful Submission: 2026-02-07 08:43:42

Matching with ?

Time of First Successful Submission: 2026-02-07 08:46:23

Matching with []

Time of First Successful Submission: 2026-02-07 08:49:18

Matching paths with []

Time of First Successful Submission: 2026-02-07 08:53:51

Multiple globs

Time of First Successful Submission: 2026-02-07 08:56:15

Mixing globs

Time of First Successful Submission: 2026-02-07 09:46:31

Exclusionary globbing

Time of First Successful Submission: 2026-02-07 09:48:28

Tab completion

Time of First Successful Submission: 2026-02-07 09:50:44

Multiple options for tab completion

Time of First Successful Submission: 2026-02-07 09:53:17

Tab completion on commands

Time of First Successful Submission: 2026-02-07 09:55:07

Redirecting output

Time of First Successful Submission: 2026-02-08 06:48:52

Redirecting more output

Time of First Successful Submission: 2026-02-08 07:00:44

Appending output

Time of First Successful Submission: 2026-02-08 07:11:15

Redirecting errors

Time of First Successful Submission: 2026-02-08 07:26:23

Redirecting input

Time of First Successful Submission: 2026-02-09 10:08:05

Grepping stored results

Time of First Successful Submission: 2026-02-09 10:11:30

Grepping live output

Time of First Successful Submission: 2026-02-09 10:13:11

Grepping errors

Time of First Successful Submission: 2026-02-09 10:17:56

Filtering with grep -v

Time of First Successful Submission: 2026-02-09 10:19:33

Filtering with sed

Time of First Successful Submission: 2026-02-09 10:22:21

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-09 10:31:34

Process substitution for input

Time of First Successful Submission: 2026-02-14 05:21:13

Writing to multiple programs

Time of First Successful Submission: 2026-02-14 05:27:15

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-14 05:48:05

Named pipes

Time of First Successful Submission: 2026-02-14 05:55:35

Printing Variables

Time of First Successful Submission: 2026-02-14 05:59:04

Setting Variables

Time of First Successful Submission: 2026-02-14 06:39:40

Multi-word Variables

Time of First Successful Submission: 2026-02-14 06:41:26

Exporting Variables

Time of First Successful Submission: 2026-02-14 06:44:44

Printing Exported Variables

Time of First Successful Submission: 2026-02-14 06:45:27

Storing Command Output

Time of First Successful Submission: 2026-02-14 06:47:12

Reading Input

Time of First Successful Submission: 2026-02-14 06:50:13

Reading Files

Time of First Successful Submission: 2026-02-14 06:52:23

Translating characters

Time of First Successful Submission: 2026-02-14 06:58:56

Deleting characters

Time of First Successful Submission: 2026-02-14 07:00:09

Deleting newlines

Time of First Successful Submission: 2026-02-14 07:02:05

Extracting the first lines with head

Time of First Successful Submission: 2026-02-14 07:03:30

Extracting specific sections of text

Time of First Successful Submission: 2026-02-14 07:05:59

Sorting data

Time of First Successful Submission: 2026-02-14 07:07:18

Listing Processes

Time of First Successful Submission: 2026-02-14 07:21:25

Killing Processes

Time of First Successful Submission: 2026-02-14 07:29:23

Interrupting Processes

Time of First Successful Submission: 2026-02-14 07:35:18

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-14 07:45:21

Suspending Processes

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Resuming Processes

Time of First Successful Submission: 2026-02-14 07:50:10

Backgrounding Processes

Time of First Successful Submission: 2026-02-14 07:54:21

Foregrounding Processes

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Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-14 07:56:31

Process Exit Codes

Time of First Successful Submission: 2026-02-14 08:01:21

Becoming root with su

Time of First Successful Submission: 2026-02-14 08:47:01

Other users with su

Time of First Successful Submission: 2026-02-14 08:48:17

Cracking passwords

Time of First Successful Submission: 2026-02-14 08:52:14

Using sudo

Time of First Successful Submission: 2026-02-14 08:55:27

Changing File Ownership

Time of First Successful Submission: 2026-02-14 12:26:41

Groups and Files

Time of First Successful Submission: 2026-02-14 12:30:45

Fun With Groups Names

Time of First Successful Submission: 2026-02-14 12:32:17

Changing Permissions

Time of First Successful Submission: 2026-02-14 12:40:01

Executable Files

Time of First Successful Submission: 2026-02-14 12:42:49

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-14 12:53:09

Permissions Setting Practice

Time of First Successful Submission: 2026-02-14 13:00:03

The SUID Bit

Time of First Successful Submission: 2026-02-14 13:08:45

Chaining with Semicolons

Time of First Successful Submission: 2026-02-14 17:45:01

Building on Success

Time of First Successful Submission: 2026-02-14 17:46:52

Handling Failure

Time of First Successful Submission: 2026-02-14 17:48:12

Your First Shell Script

Time of First Successful Submission: 2026-02-14 17:51:57

Redirecting Script Output

Time of First Successful Submission: 2026-02-14 17:55:25

Executable Shell Scripts

Time of First Successful Submission: 2026-02-14 17:57:48

Understanding Shebangs

Time of First Successful Submission: 2026-02-14 18:03:04

Scripting with Arguments

Time of First Successful Submission: 2026-02-17 12:57:13

Scripting with Conditionals

Time of First Successful Submission: 2026-02-17 13:00:04

Scripting with Default Cases

Time of First Successful Submission: 2026-02-17 13:01:46

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-17 13:05:26

Reading Shell Scripts

Time of First Successful Submission: 2026-02-17 13:08:48

Launching Screen

Time of First Successful Submission: 2026-02-17 13:10:34

Detaching and Attaching

Time of First Successful Submission: 2026-02-17 13:12:32

Finding Sessions

Time of First Successful Submission: 2026-02-17 13:19:38

Switching Windows

Time of First Successful Submission: 2026-02-17 13:21:46

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-17 13:23:59

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-17 13:25:46

The PATH Variable

Time of First Successful Submission: 2026-02-17 13:28:27

Setting PATH

Time of First Successful Submission: 2026-02-17 13:40:16

Finding Commands

Time of First Successful Submission: 2026-02-17 13:42:22

Adding Commands

Time of First Successful Submission: 2026-02-17 13:57:02

Hijacking Commands

Time of First Successful Submission: 2026-02-17 14:04:05

Bashrc Backdoor

Time of First Successful Submission: 2026-02-17 14:10:54

Sniffing Input

Time of First Successful Submission: 2026-02-17 14:19:44

Overshared Directories

Time of First Successful Submission: 2026-02-17 15:33:06

Tricky Linking

Time of First Successful Submission: 2026-02-18 11:52:57

Sniffing Process Arguments

Time of First Successful Submission: 2026-02-18 12:00:30

Snooping on Configurations

Time of First Successful Submission: 2026-02-18 12:05:52

The Fork Bomb

Time of First Successful Submission: 2026-02-18 12:32:01

Disk-Space Doomsday

Time of First Successful Submission: 2026-02-18 12:36:36

rm -rf /

Time of First Successful Submission: 2026-02-18 12:43:23

Life after rm -rf /

Time of First Successful Submission: 2026-02-18 12:53:18

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-18 13:01:10


Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-19 18:25:26

Your First Syscall

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Exit Codes

Time of First Successful Submission: 2026-02-19 18:33:40

Building Executables

Time of First Successful Submission: 2026-02-19 18:54:15

Moving Between Registers

Time of First Successful Submission: 2026-02-19 18:58:40

Loading From Memory

Time of First Successful Submission: 2026-02-20 18:55:50

More Loading Practice

Time of First Successful Submission: 2026-02-20 18:57:08

Dereferencing Pointers

Time of First Successful Submission: 2026-02-20 19:00:38

Dereferencing Yourself

Time of First Successful Submission: 2026-02-20 19:02:30

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-20 19:08:05

Stored Addresses

Time of First Successful Submission: 2026-02-20 19:14:27

Double Dereference

Time of First Successful Submission: 2026-02-20 19:18:39

The Stack

Time of First Successful Submission: 2026-02-21 04:17:58

Stack Offsets

Time of First Successful Submission: 2026-02-21 04:21:06

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-21 04:24:57

Popping From the Stack

Time of First Successful Submission: 2026-02-21 04:28:11

Disassembling Programs

Time of First Successful Submission: 2026-02-21 18:17:48

Tracing Syscalls

Time of First Successful Submission: 2026-02-21 18:20:42

Starting GDB

Time of First Successful Submission: 2026-02-21 18:22:10

Quitting GDB

Time of First Successful Submission: 2026-02-21 18:23:10

Starting Programs in GDB

Time of First Successful Submission: 2026-02-21 18:25:30

Disassembling in GDB

Time of First Successful Submission: 2026-02-21 18:26:59

Stepping Through Instructions

Time of First Successful Submission: 2026-02-21 18:29:27

Reading Register Values

Time of First Successful Submission: 2026-02-21 18:31:06

Popping Stack Values

Time of First Successful Submission: 2026-02-21 18:32:49

Examining Memory

Time of First Successful Submission: 2026-02-21 18:35:37

Examining Stack Pointers

Time of First Successful Submission: 2026-02-21 18:42:22

Cooperative Debugging

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Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-02-22 17:09:23

... and again!

Time of First Successful Submission: 2026-02-22 17:10:13

Newline Troubles

Time of First Successful Submission: 2026-02-22 17:14:21

Reasoning about files

Time of First Successful Submission: 2026-02-22 17:16:53

Specifying Filenames

Time of First Successful Submission: 2026-02-22 17:25:16


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-02-04 15:25:16

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-04 15:28:36

Using the GUI Desktop

Time of First Successful Submission: 2026-02-04 15:30:28

Pasting into the Desktop

Time of First Successful Submission: 2026-02-04 15:33:17

Restarting Challenges

Time of First Successful Submission: 2026-02-04 15:35:43

Getting Help

Time of First Successful Submission: 2026-02-04 15:38:42

Challenge Programs

Time of First Successful Submission: 2026-02-14 14:05:06

The Flag File

Time of First Successful Submission: 2026-02-14 14:06:19

Using Privileged Mode

Time of First Successful Submission: 2026-02-14 14:15:38

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-14 14:18:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-14 14:21:20