BlueLine3

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-04-16 21:48:21

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-04-16 21:51:34

Absolute Paths

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Changing position

Time of First Successful Submission: 2026-04-16 21:53:30

Changing to an Absolute Path

Time of First Successful Submission: 2026-04-16 21:55:53

Relative Paths

Time of First Successful Submission: 2026-04-17 01:13:15

Cat

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Ls

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Ls All

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Find

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Piping Echo

Time of First Successful Submission: 2026-04-20 01:26:08

Piping Stdout

Time of First Successful Submission: 2026-04-20 01:28:24


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-04-16 20:25:15

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-16 20:35:30

Using the GUI Desktop

Time of First Successful Submission: 2026-04-16 20:39:38

Pasting into the Desktop

Time of First Successful Submission: 2026-04-16 20:42:32

Restarting Challenges

Time of First Successful Submission: 2026-04-16 21:04:26

Challenge Programs

Time of First Successful Submission: 2026-04-16 21:08:03

The Flag File

Time of First Successful Submission: 2026-04-16 21:11:59

Using Privileged Mode

Time of First Successful Submission: 2026-04-16 21:28:48

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-16 21:42:57

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-16 21:43:48


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-04-16 21:48:21

Intro to Arguments

Time of First Successful Submission: 2026-04-16 21:49:29

Command History

Time of First Successful Submission: 2026-04-16 21:50:37

The Root

Time of First Successful Submission: 2026-04-16 21:51:34

Program and absolute paths

Time of First Successful Submission: 2026-04-16 21:52:13

Position thy self

Time of First Successful Submission: 2026-04-16 21:53:30

Position elsewhere

Time of First Successful Submission: 2026-04-16 21:55:53

implicit relative paths, from /

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explicit relative paths, from /

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implicit relative path

Time of First Successful Submission: 2026-04-17 01:16:06

home sweet home

Time of First Successful Submission: 2026-04-17 01:20:12

cat: not the pet, but the command!

Time of First Successful Submission: 2026-04-17 01:21:59

catting absolute paths

Time of First Successful Submission: 2026-04-17 01:22:53

more catting practice

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grepping for a needle in a haystack

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comparing files

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listing files

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touching files

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removing files

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moving files

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copying files

Time of First Successful Submission: 2026-04-17 01:45:39

hidden files

Time of First Successful Submission: 2026-04-17 01:51:50

An Epic Filesystem Quest

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making directories

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finding files

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linking files

Time of First Successful Submission: 2026-04-17 02:24:33

Learning From Documentation

Time of First Successful Submission: 2026-04-17 22:25:07

Learning Complex Usage

Time of First Successful Submission: 2026-04-17 22:33:35

Reading Manuals

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Searching Manuals

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Searching For Manuals

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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 []

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Multiple globs

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Mixing globs

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Exclusionary globbing

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Tab completion

Time of First Successful Submission: 2026-04-20 01:04:07

Multiple options for tab completion

Time of First Successful Submission: 2026-04-20 01:14:44

Tab completion on commands

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Redirecting output

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Redirecting more output

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Appending output

Time of First Successful Submission: 2026-04-20 01:40:45


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-04-16 20:25:15

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-16 20:35:30

Using the GUI Desktop

Time of First Successful Submission: 2026-04-16 20:39:38

Pasting into the Desktop

Time of First Successful Submission: 2026-04-16 20:42:32

Connecting over SSH

Time of First Successful Submission: 2026-04-16 20:57:57

Restarting Challenges

Time of First Successful Submission: 2026-04-16 21:04:26

Challenge Programs

Time of First Successful Submission: 2026-04-16 21:08:03

The Flag File

Time of First Successful Submission: 2026-04-16 21:11:59

Using Privileged Mode

Time of First Successful Submission: 2026-04-16 21:28:48

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-16 21:42:57

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-16 21:43:48