Last Choice Developer

Intro to Programming Languages

15 / 234 11007 / 34943


Commands

Time of First Successful Submission: 2026-06-08 14:44:20

Command Arguments

Time of First Successful Submission: 2026-06-08 14:45:31

Command History

Time of First Successful Submission: 2026-06-08 14:46:07

The Root Path

Time of First Successful Submission: 2026-06-09 13:28:40

Absolute Paths

Time of First Successful Submission: 2026-06-09 13:31:25

Changing position

Time of First Successful Submission: 2026-06-09 13:32:12

Changing to an Absolute Path

Time of First Successful Submission: 2026-06-09 13:34:23

Relative Paths

Time of First Successful Submission: 2026-06-09 13:51:10

Cat

Time of First Successful Submission: 2026-06-09 14:10:23

Ls

Time of First Successful Submission: 2026-06-09 14:22:24

Ls All

Time of First Successful Submission: 2026-06-09 14:34:04

Find

Time of First Successful Submission: 2026-06-09 14:58:22

Piping Echo

Time of First Successful Submission: 2026-06-09 17:58:01

Piping Stdout

Time of First Successful Submission: 2026-06-09 18:01:54

Piping Stdin

Time of First Successful Submission: 2026-06-09 18:18:37


Start Here

12 / 12 2878 / 47399


Using the Terminal

Time of First Successful Submission: 2026-06-08 13:54:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-08 13:56:49

Using the GUI Desktop

Time of First Successful Submission: 2026-06-08 13:58:48

Pasting into the Desktop

Time of First Successful Submission: 2026-06-08 14:00:21

Restarting Challenges

Time of First Successful Submission: 2026-06-08 14:08:32

Challenge Programs

Time of First Successful Submission: 2026-06-08 14:50:17

The Flag File

Time of First Successful Submission: 2026-06-08 14:51:27

Using Privileged Mode

Time of First Successful Submission: 2026-06-08 14:55:41

Persistent Home Directories - One

Time of First Successful Submission: 2026-06-08 14:58:45

Persistent Home Directories - Two

Time of First Successful Submission: 2026-06-08 14:59:30


Linux Luminarium

111 / 128 6259 / 35419


Intro to Commands

Time of First Successful Submission: 2026-06-08 14:44:20

Intro to Arguments

Time of First Successful Submission: 2026-06-08 14:45:31

Command History

Time of First Successful Submission: 2026-06-08 14:46:07

The Root

Time of First Successful Submission: 2026-06-09 13:28:40

Program and absolute paths

Time of First Successful Submission: 2026-06-09 13:31:25

Position thy self

Time of First Successful Submission: 2026-06-09 13:32:12

Position elsewhere

Time of First Successful Submission: 2026-06-09 13:34:23

implicit relative paths, from /

Time of First Successful Submission: 2026-06-09 13:51:10

explicit relative paths, from /

Time of First Successful Submission: 2026-06-09 13:53:51

implicit relative path

Time of First Successful Submission: 2026-06-09 13:56:37

home sweet home

Time of First Successful Submission: 2026-06-09 14:08:33

cat: not the pet, but the command!

Time of First Successful Submission: 2026-06-09 14:10:23

catting absolute paths

Time of First Successful Submission: 2026-06-09 14:11:07

more catting practice

Time of First Successful Submission: 2026-06-09 14:12:21

grepping for a needle in a haystack

Time of First Successful Submission: 2026-06-09 14:13:29

comparing files

Time of First Successful Submission: 2026-06-09 14:21:21

listing files

Time of First Successful Submission: 2026-06-09 14:22:24

touching files

Time of First Successful Submission: 2026-06-09 14:24:09

removing files

Time of First Successful Submission: 2026-06-09 14:24:47

moving files

Time of First Successful Submission: 2026-06-09 14:25:50

copying files

Time of First Successful Submission: 2026-06-09 14:28:09

hidden files

Time of First Successful Submission: 2026-06-09 14:34:04

An Epic Filesystem Quest

Time of First Successful Submission: 2026-06-09 14:53:43

making directories

Time of First Successful Submission: 2026-06-09 14:54:48

finding files

Time of First Successful Submission: 2026-06-09 14:58:22

linking files

Time of First Successful Submission: 2026-06-09 15:35:27

Learning From Documentation

Time of First Successful Submission: 2026-06-09 15:38:39

Learning Complex Usage

Time of First Successful Submission: 2026-06-09 15:45:29

Reading Manuals

Time of First Successful Submission: 2026-06-09 15:47:58

Searching Manuals

Time of First Successful Submission: 2026-06-09 15:56:09

Searching For Manuals

Time of First Successful Submission: 2026-06-09 16:12:36

Helpful Programs

Time of First Successful Submission: 2026-06-09 16:14:31

Help for Builtins

Time of First Successful Submission: 2026-06-09 17:28:22

Matching with *

Time of First Successful Submission: 2026-06-09 17:32:49

Matching with ?

Time of First Successful Submission: 2026-06-09 17:33:54

Matching with []

Time of First Successful Submission: 2026-06-09 17:37:41

Matching paths with []

Time of First Successful Submission: 2026-06-09 17:39:32

Multiple globs

Time of First Successful Submission: 2026-06-09 17:40:43

Mixing globs

Time of First Successful Submission: 2026-06-09 17:46:39

Exclusionary globbing

Time of First Successful Submission: 2026-06-09 17:48:03

Tab completion

Time of First Successful Submission: 2026-06-09 17:50:16

Multiple options for tab completion

Time of First Successful Submission: 2026-06-09 17:51:05

Tab completion on commands

Time of First Successful Submission: 2026-06-09 17:51:40

Redirecting output

Time of First Successful Submission: 2026-06-09 17:58:01

Redirecting more output

Time of First Successful Submission: 2026-06-09 18:01:54

Appending output

Time of First Successful Submission: 2026-06-09 18:05:09

Redirecting errors

Time of First Successful Submission: 2026-06-09 18:16:42

Redirecting input

Time of First Successful Submission: 2026-06-09 18:18:37

Grepping stored results

Time of First Successful Submission: 2026-06-09 18:26:12

Grepping live output

Time of First Successful Submission: 2026-06-09 18:28:51

Grepping errors

Time of First Successful Submission: 2026-06-09 18:30:59

Filtering with grep -v

Time of First Successful Submission: 2026-06-09 18:38:26

Filtering with sed

Time of First Successful Submission: 2026-06-09 18:41:37

Duplicating piped data with tee

Time of First Successful Submission: 2026-06-09 18:50:04

Process substitution for input

Time of First Successful Submission: 2026-06-09 18:53:59

Writing to multiple programs

Time of First Successful Submission: 2026-06-09 19:10:51

Split-piping stderr and stdout

Time of First Successful Submission: 2026-06-09 19:43:47

Named pipes

Time of First Successful Submission: 2026-06-09 19:50:01

Printing Variables

Time of First Successful Submission: 2026-06-09 19:52:11

Setting Variables

Time of First Successful Submission: 2026-06-09 19:54:34

Multi-word Variables

Time of First Successful Submission: 2026-06-10 00:49:54

Exporting Variables

Time of First Successful Submission: 2026-06-10 00:31:21

Printing Exported Variables

Time of First Successful Submission: 2026-06-10 00:32:02

Storing Command Output

Time of First Successful Submission: 2026-06-10 00:34:51

Reading Input

Time of First Successful Submission: 2026-06-10 00:45:11

Reading Files

Time of First Successful Submission: 2026-06-10 00:49:13

Translating characters

Time of First Successful Submission: 2026-06-10 00:56:57

Deleting characters

Time of First Successful Submission: 2026-06-10 00:58:06

Deleting newlines

Time of First Successful Submission: 2026-06-10 01:00:49

Extracting the first lines with head

Time of First Successful Submission: 2026-06-10 01:02:22

Extracting specific sections of text

Time of First Successful Submission: 2026-06-10 01:06:37

Sorting data

Time of First Successful Submission: 2026-06-10 01:09:40

Listing Processes

Time of First Successful Submission: 2026-06-10 01:27:15

Killing Processes

Time of First Successful Submission: 2026-06-10 01:29:05

Interrupting Processes

Time of First Successful Submission: 2026-06-10 01:31:42

Killing Misbehaving Processes

Time of First Successful Submission: 2026-06-10 01:35:24

Suspending Processes

Time of First Successful Submission: 2026-06-10 01:36:22

Resuming Processes

Time of First Successful Submission: 2026-06-10 01:37:26

Backgrounding Processes

Time of First Successful Submission: 2026-06-10 01:45:40

Foregrounding Processes

Time of First Successful Submission: 2026-06-10 01:49:12

Starting Backgrounded Processes

Time of First Successful Submission: 2026-06-10 01:53:35

Process Exit Codes

Time of First Successful Submission: 2026-06-10 01:58:57

Becoming root with su

Time of First Successful Submission: 2026-06-10 02:15:57

Other users with su

Time of First Successful Submission: 2026-06-10 02:16:35

Cracking passwords

Time of First Successful Submission: 2026-06-10 02:26:48

Using sudo

Time of First Successful Submission: 2026-06-10 02:29:38

Changing File Ownership

Time of First Successful Submission: 2026-06-10 15:08:25

Groups and Files

Time of First Successful Submission: 2026-06-10 15:14:26

Fun With Groups Names

Time of First Successful Submission: 2026-06-10 15:16:21

Changing Permissions

Time of First Successful Submission: 2026-06-10 15:21:22

Executable Files

Time of First Successful Submission: 2026-06-10 15:26:43

Permission Tweaking Practice

Time of First Successful Submission: 2026-06-10 15:38:24

Permissions Setting Practice

Time of First Successful Submission: 2026-06-10 15:45:14

The SUID Bit

Time of First Successful Submission: 2026-06-10 15:54:49

Chaining with Semicolons

Time of First Successful Submission: 2026-06-10 15:58:45

Building on Success

Time of First Successful Submission: 2026-06-10 16:01:38

Handling Failure

Time of First Successful Submission: 2026-06-10 16:02:49

Your First Shell Script

Time of First Successful Submission: 2026-06-10 16:06:46

Redirecting Script Output

Time of First Successful Submission: 2026-06-10 17:36:14

Executable Shell Scripts

Time of First Successful Submission: 2026-06-10 17:41:24

Understanding Shebangs

Time of First Successful Submission: 2026-06-10 17:55:06

Scripting with Arguments

Time of First Successful Submission: 2026-06-10 18:05:50

Scripting with Conditionals

Time of First Successful Submission: 2026-06-10 18:17:21

Scripting with Default Cases

Time of First Successful Submission: 2026-06-10 18:20:45

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-06-10 18:25:09

Reading Shell Scripts

Time of First Successful Submission: 2026-06-10 18:28:21

Launching Screen

Time of First Successful Submission: 2026-06-10 19:05:21

Detaching and Attaching

Time of First Successful Submission: 2026-06-10 19:08:38

Finding Sessions

Time of First Successful Submission: 2026-06-10 19:10:47

Switching Windows

Time of First Successful Submission: 2026-06-10 19:12:26

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-06-10 19:13:52

Switching Windows (tmux)

Time of First Successful Submission: 2026-06-10 19:19:23


DSU Cyber Camps

12 / 104 3170 / 47694


Using the Terminal

Time of First Successful Submission: 2026-06-08 13:54:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-08 13:56:49

Using the GUI Desktop

Time of First Successful Submission: 2026-06-08 13:58:48

Pasting into the Desktop

Time of First Successful Submission: 2026-06-08 14:00:21

Connecting over SSH

Time of First Successful Submission: 2026-06-08 14:05:41

Restarting Challenges

Time of First Successful Submission: 2026-06-08 14:08:32

Getting Help

Time of First Successful Submission: 2026-06-09 14:44:10

Challenge Programs

Time of First Successful Submission: 2026-06-08 14:50:17

The Flag File

Time of First Successful Submission: 2026-06-08 14:51:27

Using Privileged Mode

Time of First Successful Submission: 2026-06-08 14:55:41

Persistent Home Directories - One

Time of First Successful Submission: 2026-06-08 14:58:45

Persistent Home Directories - Two

Time of First Successful Submission: 2026-06-08 14:59:30


GCA CTF

12 / 104 3170 / 47694


Using the Terminal

Time of First Successful Submission: 2026-06-08 13:54:14

Using the VSCode Workspace

Time of First Successful Submission: 2026-06-08 13:56:49

Using the GUI Desktop

Time of First Successful Submission: 2026-06-08 13:58:48

Pasting into the Desktop

Time of First Successful Submission: 2026-06-08 14:00:21

Connecting over SSH

Time of First Successful Submission: 2026-06-08 14:05:41

Restarting Challenges

Time of First Successful Submission: 2026-06-08 14:08:32

Getting Help

Time of First Successful Submission: 2026-06-09 14:44:10

Challenge Programs

Time of First Successful Submission: 2026-06-08 14:50:17

The Flag File

Time of First Successful Submission: 2026-06-08 14:51:27

Using Privileged Mode

Time of First Successful Submission: 2026-06-08 14:55:41

Persistent Home Directories - One

Time of First Successful Submission: 2026-06-08 14:58:45

Persistent Home Directories - Two

Time of First Successful Submission: 2026-06-08 14:59:30