shadowseba

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-02-04 04:42:28

Command Arguments

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Command History

Time of First Successful Submission: 2026-02-04 04:43:13

The Root Path

Time of First Successful Submission: 2026-02-04 04:43:47

Absolute Paths

Time of First Successful Submission: 2026-02-04 04:44:08

Changing position

Time of First Successful Submission: 2026-02-04 04:44:44

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-04 04:45:27

Relative Paths

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

Cat

Time of First Successful Submission: 2026-02-04 04:51:58

Ls

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Ls All

Time of First Successful Submission: 2026-02-04 04:58:26

Find

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

Piping Echo

Time of First Successful Submission: 2026-02-04 05:35:00

Piping Stdout

Time of First Successful Submission: 2026-02-04 05:35:47

Piping Stdin

Time of First Successful Submission: 2026-02-04 05:39:56


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-22 06:39:32

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-04 03:34:54

Using the GUI Desktop

Time of First Successful Submission: 2026-02-04 04:18:12

Pasting into the Desktop

Time of First Successful Submission: 2026-02-04 04:19:09

Restarting Challenges

Time of First Successful Submission: 2026-02-04 04:25:32

Challenge Programs

Time of First Successful Submission: 2026-02-04 04:30:06

The Flag File

Time of First Successful Submission: 2026-02-04 04:31:21

Using Privileged Mode

Time of First Successful Submission: 2026-02-04 04:39:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-04 04:40:53

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-04 04:41:16


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-02-04 04:42:28

Intro to Arguments

Time of First Successful Submission: 2026-02-04 04:42:52

Command History

Time of First Successful Submission: 2026-02-04 04:43:13

The Root

Time of First Successful Submission: 2026-02-04 04:43:47

Program and absolute paths

Time of First Successful Submission: 2026-02-04 04:44:08

Position thy self

Time of First Successful Submission: 2026-02-04 04:44:44

Position elsewhere

Time of First Successful Submission: 2026-02-04 04:45:27

implicit relative paths, from /

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

explicit relative paths, from /

Time of First Successful Submission: 2026-02-04 04:47:55

implicit relative path

Time of First Successful Submission: 2026-02-04 04:48:38

home sweet home

Time of First Successful Submission: 2026-02-04 04:51:10

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-04 04:51:58

catting absolute paths

Time of First Successful Submission: 2026-02-04 04:52:18

more catting practice

Time of First Successful Submission: 2026-02-04 04:52:46

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-04 04:53:22

comparing files

Time of First Successful Submission: 2026-02-04 04:54:14

listing files

Time of First Successful Submission: 2026-02-04 04:55:18

touching files

Time of First Successful Submission: 2026-02-04 04:55:53

removing files

Time of First Successful Submission: 2026-02-04 04:56:12

moving files

Time of First Successful Submission: 2026-02-04 04:56:42

copying files

Time of First Successful Submission: 2026-02-04 04:57:59

hidden files

Time of First Successful Submission: 2026-02-04 04:58:26

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-04 05:02:08

making directories

Time of First Successful Submission: 2026-02-04 05:02:40

finding files

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

linking files

Time of First Successful Submission: 2026-02-04 05:08:33

Learning From Documentation

Time of First Successful Submission: 2026-02-04 05:10:05

Learning Complex Usage

Time of First Successful Submission: 2026-02-04 05:10:46

Reading Manuals

Time of First Successful Submission: 2026-02-04 05:12:17

Searching Manuals

Time of First Successful Submission: 2026-02-04 05:13:33

Searching For Manuals

Time of First Successful Submission: 2026-02-04 05:17:50

Helpful Programs

Time of First Successful Submission: 2026-02-04 05:18:31

Help for Builtins

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Matching with *

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Matching with ?

Time of First Successful Submission: 2026-02-04 05:22:40

Matching with []

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Matching paths with []

Time of First Successful Submission: 2026-02-04 05:25:06

Multiple globs

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Mixing globs

Time of First Successful Submission: 2026-02-04 05:27:12

Exclusionary globbing

Time of First Successful Submission: 2026-02-04 05:29:21

Tab completion

Time of First Successful Submission: 2026-02-04 05:29:58

Multiple options for tab completion

Time of First Successful Submission: 2026-02-04 05:32:14

Tab completion on commands

Time of First Successful Submission: 2026-02-04 05:32:41

Redirecting output

Time of First Successful Submission: 2026-02-04 05:35:00

Redirecting more output

Time of First Successful Submission: 2026-02-04 05:35:47

Appending output

Time of First Successful Submission: 2026-02-04 05:36:59

Redirecting errors

Time of First Successful Submission: 2026-02-04 05:39:08

Redirecting input

Time of First Successful Submission: 2026-02-04 05:39:56

Grepping stored results

Time of First Successful Submission: 2026-02-04 05:40:36

Grepping live output

Time of First Successful Submission: 2026-02-04 05:41:24

Grepping errors

Time of First Successful Submission: 2026-02-04 05:42:32

Filtering with grep -v

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

Filtering with sed

Time of First Successful Submission: 2026-02-04 05:44:39

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-04 05:55:42

Process substitution for input

Time of First Successful Submission: 2026-02-05 03:17:53

Writing to multiple programs

Time of First Successful Submission: 2026-02-05 03:26:30

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-05 03:31:59

Named pipes

Time of First Successful Submission: 2026-02-05 03:43:49

Printing Variables

Time of First Successful Submission: 2026-02-05 03:44:56

Setting Variables

Time of First Successful Submission: 2026-02-05 03:45:21

Multi-word Variables

Time of First Successful Submission: 2026-02-05 03:45:49

Exporting Variables

Time of First Successful Submission: 2026-02-05 03:47:10

Printing Exported Variables

Time of First Successful Submission: 2026-02-05 03:47:40

Storing Command Output

Time of First Successful Submission: 2026-02-05 03:50:41

Reading Input

Time of First Successful Submission: 2026-02-05 03:51:58

Reading Files

Time of First Successful Submission: 2026-02-05 03:53:06

Translating characters

Time of First Successful Submission: 2026-02-05 03:57:24

Deleting characters

Time of First Successful Submission: 2026-02-05 04:00:25

Deleting newlines

Time of First Successful Submission: 2026-02-05 04:02:09

Extracting the first lines with head

Time of First Successful Submission: 2026-02-05 04:03:33

Extracting specific sections of text

Time of First Successful Submission: 2026-02-05 04:05:06

Sorting data

Time of First Successful Submission: 2026-02-05 04:06:06

Listing Processes

Time of First Successful Submission: 2026-02-05 04:51:01

Killing Processes

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Interrupting Processes

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Killing Misbehaving Processes

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Suspending Processes

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Resuming Processes

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Backgrounding Processes

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Foregrounding Processes

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Starting Backgrounded Processes

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Process Exit Codes

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Becoming root with su

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Other users with su

Time of First Successful Submission: 2026-02-05 05:23:09

Cracking passwords

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

Using sudo

Time of First Successful Submission: 2026-02-05 05:28:15

Changing File Ownership

Time of First Successful Submission: 2026-02-05 22:56:01

Groups and Files

Time of First Successful Submission: 2026-02-05 22:57:15

Fun With Groups Names

Time of First Successful Submission: 2026-02-05 22:57:56

Changing Permissions

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

Executable Files

Time of First Successful Submission: 2026-02-05 23:02:25

Chaining with Semicolons

Time of First Successful Submission: 2026-02-05 05:29:20

Building on Success

Time of First Successful Submission: 2026-02-05 05:30:06

Handling Failure

Time of First Successful Submission: 2026-02-05 05:30:31

Your First Shell Script

Time of First Successful Submission: 2026-02-05 05:33:34

Redirecting Script Output

Time of First Successful Submission: 2026-02-05 05:35:00

Executable Shell Scripts

Time of First Successful Submission: 2026-02-05 05:35:43

Understanding Shebangs

Time of First Successful Submission: 2026-02-05 05:37:12

Scripting with Arguments

Time of First Successful Submission: 2026-02-05 05:38:42

Scripting with Conditionals

Time of First Successful Submission: 2026-02-05 05:40:03

Scripting with Default Cases

Time of First Successful Submission: 2026-02-05 05:40:36

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-05 05:42:22

Reading Shell Scripts

Time of First Successful Submission: 2026-02-05 05:42:51

Launching Screen

Time of First Successful Submission: 2026-02-05 04:07:08

Detaching and Attaching

Time of First Successful Submission: 2026-02-05 04:07:56

Finding Sessions

Time of First Successful Submission: 2026-02-05 04:10:07

Switching Windows

Time of First Successful Submission: 2026-02-05 04:11:17

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-05 04:12:34

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-05 04:12:59

The PATH Variable

Time of First Successful Submission: 2026-02-05 04:14:13

Setting PATH

Time of First Successful Submission: 2026-02-05 04:16:44

Finding Commands

Time of First Successful Submission: 2026-02-05 04:18:45

Adding Commands

Time of First Successful Submission: 2026-02-05 04:24:15

Hijacking Commands

Time of First Successful Submission: 2026-02-05 04:31:58

rm -rf /

Time of First Successful Submission: 2026-02-05 05:52:36

Life after rm -rf /

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

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-05 06:02:22


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-01-22 06:39:32

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-04 03:34:54

Using the GUI Desktop

Time of First Successful Submission: 2026-02-04 04:18:12

Pasting into the Desktop

Time of First Successful Submission: 2026-02-04 04:19:09

Connecting over SSH

Time of First Successful Submission: 2026-02-04 04:23:15

Restarting Challenges

Time of First Successful Submission: 2026-02-04 04:25:32

Getting Help

Time of First Successful Submission: 2026-02-04 04:29:18

Challenge Programs

Time of First Successful Submission: 2026-02-04 04:30:06

The Flag File

Time of First Successful Submission: 2026-02-04 04:31:21

Using Privileged Mode

Time of First Successful Submission: 2026-02-04 04:39:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-04 04:40:53

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-04 04:41:16


Linux Firmware Rehosting

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Unpacking your first firmware

Time of First Successful Submission: 2026-01-23 15:53:43

Your first rehosting!

Time of First Successful Submission: 2026-01-23 16:24:09

Looking at console output

Time of First Successful Submission: 2026-01-23 16:38:20