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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-01-27 11:53:53

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-01-27 20:59:47

Absolute Paths

Time of First Successful Submission: 2026-01-27 21:01:00

Changing position

Time of First Successful Submission: 2026-01-27 21:02:50

Changing to an Absolute Path

Time of First Successful Submission: 2026-01-27 21:11:59

Relative Paths

Time of First Successful Submission: 2026-01-27 22:33:46

Cat

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Ls

Time of First Successful Submission: 2026-01-27 23:10:05

Ls All

Time of First Successful Submission: 2026-01-28 01:52:53

Find

Time of First Successful Submission: 2026-01-28 02:14:17

Piping Echo

Time of First Successful Submission: 2026-01-28 04:04:09

Piping Stdout

Time of First Successful Submission: 2026-01-28 04:05:38

Piping Stdin

Time of First Successful Submission: 2026-01-28 10:53:19


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-01-27 10:49:48

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-27 10:56:18

Using the GUI Desktop

Time of First Successful Submission: 2026-01-27 11:07:47

Pasting into the Desktop

Time of First Successful Submission: 2026-01-27 11:10:08

Restarting Challenges

Time of First Successful Submission: 2026-01-27 11:36:42

Challenge Programs

Time of First Successful Submission: 2026-01-27 20:37:23

The Flag File

Time of First Successful Submission: 2026-01-27 20:40:02

Using Privileged Mode

Time of First Successful Submission: 2026-01-27 20:48:36

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-27 20:51:49

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-27 20:53:58


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-01-27 11:53:53

Intro to Arguments

Time of First Successful Submission: 2026-01-27 11:56:52

Command History

Time of First Successful Submission: 2026-01-27 20:57:02

The Root

Time of First Successful Submission: 2026-01-27 20:59:47

Program and absolute paths

Time of First Successful Submission: 2026-01-27 21:01:00

Position thy self

Time of First Successful Submission: 2026-01-27 21:02:50

Position elsewhere

Time of First Successful Submission: 2026-01-27 21:11:59

implicit relative paths, from /

Time of First Successful Submission: 2026-01-27 22:33:46

explicit relative paths, from /

Time of First Successful Submission: 2026-01-27 22:34:54

implicit relative path

Time of First Successful Submission: 2026-01-27 22:36:20

home sweet home

Time of First Successful Submission: 2026-01-27 22:39:24

cat: not the pet, but the command!

Time of First Successful Submission: 2026-01-27 22:50:48

catting absolute paths

Time of First Successful Submission: 2026-01-27 22:51:54

more catting practice

Time of First Successful Submission: 2026-01-27 22:53:54

grepping for a needle in a haystack

Time of First Successful Submission: 2026-01-27 22:55:34

comparing files

Time of First Successful Submission: 2026-01-27 23:01:39

listing files

Time of First Successful Submission: 2026-01-27 23:10:05

touching files

Time of First Successful Submission: 2026-01-27 23:17:13

removing files

Time of First Successful Submission: 2026-01-27 23:20:25

moving files

Time of First Successful Submission: 2026-01-28 01:49:33

copying files

Time of First Successful Submission: 2026-01-28 01:51:12

hidden files

Time of First Successful Submission: 2026-01-28 01:52:53

An Epic Filesystem Quest

Time of First Successful Submission: 2026-01-28 01:59:44

making directories

Time of First Successful Submission: 2026-01-28 02:01:15

finding files

Time of First Successful Submission: 2026-01-28 02:14:17

linking files

Time of First Successful Submission: 2026-01-28 02:17:42

Learning From Documentation

Time of First Successful Submission: 2026-01-28 02:19:16

Learning Complex Usage

Time of First Successful Submission: 2026-01-28 02:21:02

Reading Manuals

Time of First Successful Submission: 2026-01-28 02:25:00

Searching Manuals

Time of First Successful Submission: 2026-01-28 02:29:16

Searching For Manuals

Time of First Successful Submission: 2026-01-28 02:31:41

Helpful Programs

Time of First Successful Submission: 2026-01-28 02:33:27

Help for Builtins

Time of First Successful Submission: 2026-01-28 02:36:42

Matching with *

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Matching with ?

Time of First Successful Submission: 2026-01-28 02:53:07

Matching with []

Time of First Successful Submission: 2026-01-28 03:11:49

Matching paths with []

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

Multiple globs

Time of First Successful Submission: 2026-01-28 03:14:44

Mixing globs

Time of First Successful Submission: 2026-01-28 03:23:32

Exclusionary globbing

Time of First Successful Submission: 2026-01-28 03:26:05

Tab completion

Time of First Successful Submission: 2026-01-28 03:28:19

Multiple options for tab completion

Time of First Successful Submission: 2026-01-28 03:32:19

Tab completion on commands

Time of First Successful Submission: 2026-01-28 03:36:14

Redirecting output

Time of First Successful Submission: 2026-01-28 04:04:09

Redirecting more output

Time of First Successful Submission: 2026-01-28 04:05:38

Appending output

Time of First Successful Submission: 2026-01-28 10:46:23

Redirecting errors

Time of First Successful Submission: 2026-01-28 10:50:01

Redirecting input

Time of First Successful Submission: 2026-01-28 10:53:19

Grepping stored results

Time of First Successful Submission: 2026-01-28 10:58:12

Grepping live output

Time of First Successful Submission: 2026-01-28 11:00:10

Grepping errors

Time of First Successful Submission: 2026-01-28 11:04:32

Filtering with grep -v

Time of First Successful Submission: 2026-01-28 11:07:12

Filtering with sed

Time of First Successful Submission: 2026-01-28 11:12:34

Duplicating piped data with tee

Time of First Successful Submission: 2026-01-28 11:31:03

Process substitution for input

Time of First Successful Submission: 2026-01-28 22:40:26

Writing to multiple programs

Time of First Successful Submission: 2026-01-29 05:13:40

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-29 05:21:31

Named pipes

Time of First Successful Submission: 2026-01-29 05:30:54

Printing Variables

Time of First Successful Submission: 2026-01-29 05:54:11

Setting Variables

Time of First Successful Submission: 2026-01-29 06:27:48

Multi-word Variables

Time of First Successful Submission: 2026-01-29 06:44:32

Exporting Variables

Time of First Successful Submission: 2026-01-29 06:53:15

Printing Exported Variables

Time of First Successful Submission: 2026-01-29 06:57:20

Storing Command Output

Time of First Successful Submission: 2026-01-29 07:02:23

Reading Input

Time of First Successful Submission: 2026-01-29 07:06:08

Reading Files

Time of First Successful Submission: 2026-01-29 07:17:22

Translating characters

Time of First Successful Submission: 2026-01-29 07:55:22

Deleting characters

Time of First Successful Submission: 2026-01-29 07:56:45

Deleting newlines

Time of First Successful Submission: 2026-01-29 07:59:19

Extracting the first lines with head

Time of First Successful Submission: 2026-01-29 08:01:39

Extracting specific sections of text

Time of First Successful Submission: 2026-01-29 08:05:30

Sorting data

Time of First Successful Submission: 2026-01-29 08:09:19

Listing Processes

Time of First Successful Submission: 2026-01-29 09:13:34

Killing Processes

Time of First Successful Submission: 2026-01-29 09:15:16

Interrupting Processes

Time of First Successful Submission: 2026-01-29 09:16:32

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-29 09:21:42

Suspending Processes

Time of First Successful Submission: 2026-01-29 09:32:37

Resuming Processes

Time of First Successful Submission: 2026-01-29 09:35:38

Backgrounding Processes

Time of First Successful Submission: 2026-01-29 09:47:04

Foregrounding Processes

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Starting Backgrounded Processes

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Process Exit Codes

Time of First Successful Submission: 2026-01-29 10:19:35

Becoming root with su

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Other users with su

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Cracking passwords

Time of First Successful Submission: 2026-01-29 10:43:03

Using sudo

Time of First Successful Submission: 2026-01-29 10:47:19

Changing File Ownership

Time of First Successful Submission: 2026-01-30 10:02:27

Groups and Files

Time of First Successful Submission: 2026-01-31 09:03:33

Fun With Groups Names

Time of First Successful Submission: 2026-02-01 08:27:42

Changing Permissions

Time of First Successful Submission: 2026-07-31 05:03:42

Executable Files

Time of First Successful Submission: 2026-07-31 05:08:17

Permission Tweaking Practice

Time of First Successful Submission: 2026-07-31 05:21:49

Permissions Setting Practice

Time of First Successful Submission: 2026-07-31 05:49:11

The SUID Bit

Time of First Successful Submission: 2026-07-31 05:56:51

Chaining with Semicolons

Time of First Successful Submission: 2026-07-31 06:01:50

Building on Success

Time of First Successful Submission: 2026-07-31 06:07:53

Handling Failure

Time of First Successful Submission: 2026-07-31 06:22:12

Your First Shell Script

Time of First Successful Submission: 2026-07-31 06:28:18

Redirecting Script Output

Time of First Successful Submission: 2026-07-31 09:05:04

Executable Shell Scripts

Time of First Successful Submission: 2026-07-31 09:08:21

Understanding Shebangs

Time of First Successful Submission: 2026-07-31 09:14:20

Scripting with Arguments

Time of First Successful Submission: 2026-07-31 09:20:07

Scripting with Conditionals

Time of First Successful Submission: 2026-07-31 09:32:49

Scripting with Default Cases

Time of First Successful Submission: 2026-07-31 09:36:53

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-07-31 09:41:04

Reading Shell Scripts

Time of First Successful Submission: 2026-07-31 09:44:45

Launching Screen

Time of First Successful Submission: 2026-07-31 23:41:40

Detaching and Attaching

Time of First Successful Submission: 2026-07-31 23:57:26

Finding Sessions

Time of First Successful Submission: 2026-08-01 00:19:10

Switching Windows

Time of First Successful Submission: 2026-08-01 00:23:42

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-08-01 00:26:28

Switching Windows (tmux)

Time of First Successful Submission: 2026-08-01 00:28:50

The PATH Variable

Time of First Successful Submission: 2026-08-01 00:40:40

Setting PATH

Time of First Successful Submission: 2026-08-01 00:57:50

Finding Commands

Time of First Successful Submission: 2026-08-01 01:00:43

Adding Commands

Time of First Successful Submission: 2026-08-01 01:18:42

Hijacking Commands

Time of First Successful Submission: 2026-08-01 01:29:40

Bashrc Backdoor

Time of First Successful Submission: 2026-08-01 02:22:47

Sniffing Input

Time of First Successful Submission: 2026-08-01 02:43:49

Overshared Directories

Time of First Successful Submission: 2026-08-01 03:07:13

Tricky Linking

Time of First Successful Submission: 2026-08-01 03:19:25

Sniffing Process Arguments

Time of First Successful Submission: 2026-08-01 03:23:28

Snooping on Configurations

Time of First Successful Submission: 2026-08-01 03:29:36

The Fork Bomb

Time of First Successful Submission: 2026-08-01 03:46:47

Disk-Space Doomsday

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rm -rf /

Time of First Successful Submission: 2026-08-01 03:57:41

Life after rm -rf /

Time of First Successful Submission: 2026-08-01 04:03:24

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-08-01 04:07:33


Computing 101

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Your First Register

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Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-01-28 04:15:12

... and again!

Time of First Successful Submission: 2026-01-28 04:17:22

Newline Troubles

Time of First Successful Submission: 2026-01-28 04:19:52

Reasoning about files

Time of First Successful Submission: 2026-01-28 04:24:15

Specifying Filenames

Time of First Successful Submission: 2026-01-28 04:26:02

Binary and Hex Encoding

Time of First Successful Submission: 2026-01-28 04:32:41

More Hex

Time of First Successful Submission: 2026-01-28 05:02:22

Decoding Hex

Time of First Successful Submission: 2026-01-28 05:59:38


DSU Cyber Camps

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Using the Terminal

Time of First Successful Submission: 2026-01-27 10:49:48

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-27 10:56:18

Using the GUI Desktop

Time of First Successful Submission: 2026-01-27 11:07:47

Pasting into the Desktop

Time of First Successful Submission: 2026-01-27 11:10:08

Connecting over SSH

Time of First Successful Submission: 2026-07-26 08:45:19

Restarting Challenges

Time of First Successful Submission: 2026-01-27 11:36:42

Challenge Programs

Time of First Successful Submission: 2026-01-27 20:37:23

The Flag File

Time of First Successful Submission: 2026-01-27 20:40:02

Using Privileged Mode

Time of First Successful Submission: 2026-01-27 20:48:36

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-27 20:51:49

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-27 20:53:58


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-01-27 10:49:48

Using the VSCode Workspace

Time of First Successful Submission: 2026-01-27 10:56:18

Using the GUI Desktop

Time of First Successful Submission: 2026-01-27 11:07:47

Pasting into the Desktop

Time of First Successful Submission: 2026-01-27 11:10:08

Connecting over SSH

Time of First Successful Submission: 2026-07-26 08:45:19

Restarting Challenges

Time of First Successful Submission: 2026-01-27 11:36:42

Challenge Programs

Time of First Successful Submission: 2026-01-27 20:37:23

The Flag File

Time of First Successful Submission: 2026-01-27 20:40:02

Using Privileged Mode

Time of First Successful Submission: 2026-01-27 20:48:36

Persistent Home Directories - One

Time of First Successful Submission: 2026-01-27 20:51:49

Persistent Home Directories - Two

Time of First Successful Submission: 2026-01-27 20:53:58