KryVoid

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-01-03 05:45:38

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-01-03 06:03:38

Absolute Paths

Time of First Successful Submission: 2026-01-03 06:03:59

Changing position

Time of First Successful Submission: 2026-01-03 06:04:54

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-03 06:08:14

Relative Paths

Time of First Successful Submission: 2026-01-03 06:21:23

Cat

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Ls

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Ls All

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Find

Time of First Successful Submission: 2026-01-03 07:20:24

Piping Echo

Time of First Successful Submission: 2026-01-03 11:00:42

Piping Stdout

Time of First Successful Submission: 2026-01-03 11:02:45

Piping Stdin

Time of First Successful Submission: 2026-01-03 11:09:47


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-02 12:48:49

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-03 05:05:50

Using the GUI Desktop

Time of First Successful Submission: 2026-01-03 05:21:29

Pasting into the Desktop

Time of First Successful Submission: 2026-01-03 05:27:46

Restarting Challenges

Time of First Successful Submission: 2026-01-03 05:36:03

Challenge Programs

Time of First Successful Submission: 2026-01-03 05:48:49

The Flag File

Time of First Successful Submission: 2026-01-03 05:50:05

Using Privileged Mode

Time of First Successful Submission: 2026-01-03 05:56:28

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-03 06:01:19

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-03 06:02:05


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-01-03 05:45:38

Intro to Arguments

Time of First Successful Submission: 2026-01-03 05:46:32

Command History

Time of First Successful Submission: 2026-01-03 05:47:09

The Root

Time of First Successful Submission: 2026-01-03 06:03:38

Program and absolute paths

Time of First Successful Submission: 2026-01-03 06:03:59

Position thy self

Time of First Successful Submission: 2026-01-03 06:04:54

Position elsewhere

Time of First Successful Submission: 2026-01-03 06:08:14

implicit relative paths, from /

Time of First Successful Submission: 2026-01-03 06:21:23

explicit relative paths, from /

Time of First Successful Submission: 2026-01-03 06:22:56

implicit relative path

Time of First Successful Submission: 2026-01-03 06:33:39

home sweet home

Time of First Successful Submission: 2026-01-03 06:38:20

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-03 06:49:31

catting absolute paths

Time of First Successful Submission: 2026-01-03 06:52:17

more catting practice

Time of First Successful Submission: 2026-01-03 06:53:07

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-03 06:56:25

comparing files

Time of First Successful Submission: 2026-01-03 06:58:49

listing files

Time of First Successful Submission: 2026-01-03 07:00:10

touching files

Time of First Successful Submission: 2026-01-03 07:00:54

removing files

Time of First Successful Submission: 2026-01-03 07:01:25

moving files

Time of First Successful Submission: 2026-01-03 07:02:10

copying files

Time of First Successful Submission: 2026-01-03 07:02:51

hidden files

Time of First Successful Submission: 2026-01-03 07:03:26

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-03 07:10:32

making directories

Time of First Successful Submission: 2026-01-03 07:15:57

finding files

Time of First Successful Submission: 2026-01-03 07:20:24

linking files

Time of First Successful Submission: 2026-01-03 07:32:28

Learning From Documentation

Time of First Successful Submission: 2026-01-03 07:34:23

Learning Complex Usage

Time of First Successful Submission: 2026-01-03 07:35:58

Reading Manuals

Time of First Successful Submission: 2026-01-03 07:39:16

Searching Manuals

Time of First Successful Submission: 2026-01-03 07:55:28

Searching For Manuals

Time of First Successful Submission: 2026-01-03 08:06:31

Helpful Programs

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Help for Builtins

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Matching with *

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Matching with ?

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Matching with []

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Matching paths with []

Time of First Successful Submission: 2026-01-03 08:58:12

Multiple globs

Time of First Successful Submission: 2026-01-03 09:00:12

Mixing globs

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Exclusionary globbing

Time of First Successful Submission: 2026-01-03 10:56:55

Tab completion

Time of First Successful Submission: 2026-01-03 10:58:02

Multiple options for tab completion

Time of First Successful Submission: 2026-01-03 10:58:58

Tab completion on commands

Time of First Successful Submission: 2026-01-03 10:59:24

Redirecting output

Time of First Successful Submission: 2026-01-03 11:00:42

Redirecting more output

Time of First Successful Submission: 2026-01-03 11:02:45

Appending output

Time of First Successful Submission: 2026-01-03 11:04:37

Redirecting errors

Time of First Successful Submission: 2026-01-03 11:08:03

Redirecting input

Time of First Successful Submission: 2026-01-03 11:09:47

Grepping stored results

Time of First Successful Submission: 2026-01-03 11:12:13

Grepping live output

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Grepping errors

Time of First Successful Submission: 2026-01-03 11:14:55

Filtering with grep -v

Time of First Successful Submission: 2026-01-03 11:17:26

Filtering with sed

Time of First Successful Submission: 2026-01-03 11:21:38

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-03 11:27:29

Process substitution for input

Time of First Successful Submission: 2026-01-03 12:13:28

Writing to multiple programs

Time of First Successful Submission: 2026-01-03 12:46:24

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-03 12:30:35

Named pipes

Time of First Successful Submission: 2026-01-03 12:45:21

Printing Variables

Time of First Successful Submission: 2026-01-03 13:02:16

Setting Variables

Time of First Successful Submission: 2026-01-03 13:04:06

Multi-word Variables

Time of First Successful Submission: 2026-01-03 13:06:38

Exporting Variables

Time of First Successful Submission: 2026-01-04 01:36:10

Printing Exported Variables

Time of First Successful Submission: 2026-01-04 01:36:49

Storing Command Output

Time of First Successful Submission: 2026-01-04 01:40:25

Reading Input

Time of First Successful Submission: 2026-01-04 01:51:12

Reading Files

Time of First Successful Submission: 2026-01-04 01:54:28

Translating characters

Time of First Successful Submission: 2026-01-04 02:40:28

Deleting characters

Time of First Successful Submission: 2026-01-04 02:46:20

Deleting newlines

Time of First Successful Submission: 2026-01-04 02:50:38

Extracting the first lines with head

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Extracting specific sections of text

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Sorting data

Time of First Successful Submission: 2026-01-04 03:21:03

Listing Processes

Time of First Successful Submission: 2026-01-04 03:26:19

Killing Processes

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Interrupting Processes

Time of First Successful Submission: 2026-01-04 03:28:49

Killing Misbehaving Processes

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Suspending Processes

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Resuming Processes

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Backgrounding Processes

Time of First Successful Submission: 2026-01-04 03:36:33

Foregrounding Processes

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Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-04 03:38:12

Process Exit Codes

Time of First Successful Submission: 2026-01-04 04:19:01

Becoming root with su

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Other users with su

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Cracking passwords

Time of First Successful Submission: 2026-01-04 04:32:44

Using sudo

Time of First Successful Submission: 2026-01-04 04:35:42

Changing File Ownership

Time of First Successful Submission: 2026-01-04 04:43:31

Groups and Files

Time of First Successful Submission: 2026-01-04 04:50:13

Fun With Groups Names

Time of First Successful Submission: 2026-01-04 05:02:43

Changing Permissions

Time of First Successful Submission: 2026-01-04 05:35:22

Executable Files

Time of First Successful Submission: 2026-01-04 05:37:04

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-04 05:47:55

Permissions Setting Practice

Time of First Successful Submission: 2026-01-05 04:07:11

The SUID Bit

Time of First Successful Submission: 2026-01-05 04:10:00

Chaining with Semicolons

Time of First Successful Submission: 2026-01-05 04:13:52

Building on Success

Time of First Successful Submission: 2026-01-05 04:16:31

Handling Failure

Time of First Successful Submission: 2026-01-05 04:17:33

Your First Shell Script

Time of First Successful Submission: 2026-01-05 04:20:41

Redirecting Script Output

Time of First Successful Submission: 2026-01-05 04:28:55

Executable Shell Scripts

Time of First Successful Submission: 2026-01-05 04:30:50

Understanding Shebangs

Time of First Successful Submission: 2026-01-05 04:34:40

Scripting with Arguments

Time of First Successful Submission: 2026-01-05 04:37:38

Scripting with Conditionals

Time of First Successful Submission: 2026-01-05 04:41:56

Scripting with Default Cases

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Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-05 04:48:25

Reading Shell Scripts

Time of First Successful Submission: 2026-01-05 04:51:48

Launching Screen

Time of First Successful Submission: 2026-01-05 06:42:51

Detaching and Attaching

Time of First Successful Submission: 2026-01-05 06:45:15

Finding Sessions

Time of First Successful Submission: 2026-01-05 06:47:49

Switching Windows

Time of First Successful Submission: 2026-01-06 01:06:56

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-06 01:18:15

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-06 01:19:36

The PATH Variable

Time of First Successful Submission: 2026-01-06 01:28:29

Setting PATH

Time of First Successful Submission: 2026-01-06 01:36:30

Finding Commands

Time of First Successful Submission: 2026-01-06 01:38:52

Adding Commands

Time of First Successful Submission: 2026-01-06 06:27:51

Hijacking Commands

Time of First Successful Submission: 2026-01-06 06:38:13

Bashrc Backdoor

Time of First Successful Submission: 2026-01-07 01:18:11

Sniffing Input

Time of First Successful Submission: 2026-01-07 01:48:47

Overshared Directories

Time of First Successful Submission: 2026-01-07 02:00:19

Tricky Linking

Time of First Successful Submission: 2026-01-07 11:24:12

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-11 01:20:10

Snooping on Configurations

Time of First Successful Submission: 2026-01-11 01:25:52

The Fork Bomb

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

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-11 02:18:40

rm -rf /

Time of First Successful Submission: 2026-01-11 02:53:25

Life after rm -rf /

Time of First Successful Submission: 2026-01-11 03:02:17

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-11 03:07:17


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-01-02 12:48:49

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-03 05:05:50

Using the GUI Desktop

Time of First Successful Submission: 2026-01-03 05:21:29

Pasting into the Desktop

Time of First Successful Submission: 2026-01-03 05:27:46

Connecting over SSH

Time of First Successful Submission: 2026-01-03 05:31:08

Restarting Challenges

Time of First Successful Submission: 2026-01-03 05:36:03

Challenge Programs

Time of First Successful Submission: 2026-01-03 05:48:49

The Flag File

Time of First Successful Submission: 2026-01-03 05:50:05

Using Privileged Mode

Time of First Successful Submission: 2026-01-03 05:56:28

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-03 06:01:19

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-03 06:02:05