Hitarth

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-02-28 17:28:58

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-02-28 17:31:59

Absolute Paths

Time of First Successful Submission: 2026-02-28 17:32:33

Changing position

Time of First Successful Submission: 2026-02-28 17:35:45

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-28 17:37:39

Relative Paths

Time of First Successful Submission: 2026-02-28 17:41:23

Cat

Time of First Successful Submission: 2026-03-01 07:48:52

Ls

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Ls All

Time of First Successful Submission: 2026-03-01 08:05:46

Find

Time of First Successful Submission: 2026-03-01 08:26:09

Piping Echo

Time of First Successful Submission: 2026-03-02 05:21:19

Piping Stdout

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Piping Stdin

Time of First Successful Submission: 2026-03-02 05:34:25


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-26 17:03:18

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-26 17:08:58

Using the GUI Desktop

Time of First Successful Submission: 2026-02-26 17:14:46

Pasting into the Desktop

Time of First Successful Submission: 2026-02-26 17:17:32

Restarting Challenges

Time of First Successful Submission: 2026-02-27 04:52:45

Challenge Programs

Time of First Successful Submission: 2026-02-27 04:58:20

The Flag File

Time of First Successful Submission: 2026-02-27 04:59:39

Using Privileged Mode

Time of First Successful Submission: 2026-02-27 05:08:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-27 05:18:39

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-27 05:17:53


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-02-28 17:28:58

Intro to Arguments

Time of First Successful Submission: 2026-02-28 17:30:01

Command History

Time of First Successful Submission: 2026-02-28 17:30:46

The Root

Time of First Successful Submission: 2026-02-28 17:31:59

Program and absolute paths

Time of First Successful Submission: 2026-02-28 17:32:33

Position thy self

Time of First Successful Submission: 2026-02-28 17:35:45

Position elsewhere

Time of First Successful Submission: 2026-02-28 17:37:39

implicit relative paths, from /

Time of First Successful Submission: 2026-02-28 17:41:23

explicit relative paths, from /

Time of First Successful Submission: 2026-02-28 18:13:20

implicit relative path

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home sweet home

Time of First Successful Submission: 2026-02-28 18:21:58

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-01 07:48:52

catting absolute paths

Time of First Successful Submission: 2026-03-01 07:50:01

more catting practice

Time of First Successful Submission: 2026-03-01 07:50:56

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-01 07:52:47

comparing files

Time of First Successful Submission: 2026-03-01 07:55:22

listing files

Time of First Successful Submission: 2026-03-01 07:56:45

touching files

Time of First Successful Submission: 2026-03-01 07:58:04

removing files

Time of First Successful Submission: 2026-03-01 07:59:15

moving files

Time of First Successful Submission: 2026-03-01 08:02:58

copying files

Time of First Successful Submission: 2026-03-01 08:04:02

hidden files

Time of First Successful Submission: 2026-03-01 08:05:46

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-01 08:21:21

making directories

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

finding files

Time of First Successful Submission: 2026-03-01 08:26:09

linking files

Time of First Successful Submission: 2026-03-01 08:41:05

Learning From Documentation

Time of First Successful Submission: 2026-03-01 13:58:46

Learning Complex Usage

Time of First Successful Submission: 2026-03-01 14:02:41

Reading Manuals

Time of First Successful Submission: 2026-03-01 14:06:53

Searching Manuals

Time of First Successful Submission: 2026-03-01 14:10:55

Searching For Manuals

Time of First Successful Submission: 2026-03-01 15:40:02

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: 2026-03-01 16:12:38

Multiple globs

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Mixing globs

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Exclusionary globbing

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Tab completion

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Multiple options for tab completion

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Tab completion on commands

Time of First Successful Submission: 2026-03-01 17:00:51

Redirecting output

Time of First Successful Submission: 2026-03-02 05:21:19

Redirecting more output

Time of First Successful Submission: 2026-03-02 05:22:55

Appending output

Time of First Successful Submission: 2026-03-02 05:24:56

Redirecting errors

Time of First Successful Submission: 2026-03-02 05:28:59

Redirecting input

Time of First Successful Submission: 2026-03-02 05:34:25

Grepping stored results

Time of First Successful Submission: 2026-03-02 05:44:08

Grepping live output

Time of First Successful Submission: 2026-03-02 05:45:18

Grepping errors

Time of First Successful Submission: 2026-03-02 05:53:22

Filtering with grep -v

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Filtering with sed

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Duplicating piped data with tee

Time of First Successful Submission: 2026-03-02 06:11:15

Process substitution for input

Time of First Successful Submission: 2026-03-02 12:00:38

Writing to multiple programs

Time of First Successful Submission: 2026-03-02 12:06:25

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-02 12:13:00

Named pipes

Time of First Successful Submission: 2026-03-02 12:39:53

Printing Variables

Time of First Successful Submission: 2026-03-02 12:42:51

Setting Variables

Time of First Successful Submission: 2026-03-02 12:43:50

Multi-word Variables

Time of First Successful Submission: 2026-03-02 12:44:32

Exporting Variables

Time of First Successful Submission: 2026-03-03 08:53:54

Printing Exported Variables

Time of First Successful Submission: 2026-03-03 08:55:32

Storing Command Output

Time of First Successful Submission: 2026-03-03 09:02:16

Reading Input

Time of First Successful Submission: 2026-03-08 04:16:11

Reading Files

Time of First Successful Submission: 2026-03-08 04:18:57

Translating characters

Time of First Successful Submission: 2026-03-08 04:23:24

Deleting characters

Time of First Successful Submission: 2026-03-08 04:24:40

Deleting newlines

Time of First Successful Submission: 2026-03-08 04:27:44

Extracting the first lines with head

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Extracting specific sections of text

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Sorting data

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Listing Processes

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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

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Cracking passwords

Time of First Successful Submission: 2026-03-08 05:25:11

Using sudo

Time of First Successful Submission: 2026-03-08 05:30:37

Changing File Ownership

Time of First Successful Submission: 2026-03-08 11:57:38

Groups and Files

Time of First Successful Submission: 2026-03-08 12:01:10

Fun With Groups Names

Time of First Successful Submission: 2026-03-08 12:05:50

Changing Permissions

Time of First Successful Submission: 2026-03-08 12:14:53

Executable Files

Time of First Successful Submission: 2026-03-08 12:17:23

Permission Tweaking Practice

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Permissions Setting Practice

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The SUID Bit

Time of First Successful Submission: 2026-03-09 03:42:00

Chaining with Semicolons

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Building on Success

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Handling Failure

Time of First Successful Submission: 2026-03-09 03:55:48

Your First Shell Script

Time of First Successful Submission: 2026-03-09 04:03:41

Redirecting Script Output

Time of First Successful Submission: 2026-03-09 04:06:35

Executable Shell Scripts

Time of First Successful Submission: 2026-03-09 04:38:18

Understanding Shebangs

Time of First Successful Submission: 2026-03-09 04:48:17

Scripting with Arguments

Time of First Successful Submission: 2026-03-10 06:53:01

Scripting with Conditionals

Time of First Successful Submission: 2026-03-14 10:54:00

Scripting with Default Cases

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Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-14 11:03:04

Reading Shell Scripts

Time of First Successful Submission: 2026-03-14 11:06:48

Launching Screen

Time of First Successful Submission: 2026-03-14 11:10:57

Detaching and Attaching

Time of First Successful Submission: 2026-03-14 11:15:48

Finding Sessions

Time of First Successful Submission: 2026-03-14 11:20:22

Switching Windows

Time of First Successful Submission: 2026-03-14 11:23:33

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-14 11:35:52

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-14 11:40:18

The PATH Variable

Time of First Successful Submission: 2026-03-14 11:46:21

Setting PATH

Time of First Successful Submission: 2026-03-14 11:48:33

Finding Commands

Time of First Successful Submission: 2026-03-14 11:56:22

Adding Commands

Time of First Successful Submission: 2026-03-14 12:04:48

Hijacking Commands

Time of First Successful Submission: 2026-03-14 12:07:13

Bashrc Backdoor

Time of First Successful Submission: 2026-03-15 15:58:10

Sniffing Input

Time of First Successful Submission: 2026-03-15 16:08:53

Overshared Directories

Time of First Successful Submission: 2026-03-18 06:35:27

Tricky Linking

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Sniffing Process Arguments

Time of First Successful Submission: 2026-03-18 06:48:54

Snooping on Configurations

Time of First Successful Submission: 2026-03-18 06:55:04

The Fork Bomb

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Disk-Space Doomsday

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rm -rf /

Time of First Successful Submission: 2026-03-18 08:09:56

Life after rm -rf /

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Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-18 08:31:53


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-02-26 17:03:18

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-26 17:08:58

Using the GUI Desktop

Time of First Successful Submission: 2026-02-26 17:14:46

Pasting into the Desktop

Time of First Successful Submission: 2026-02-26 17:17:32

Connecting over SSH

Time of First Successful Submission: 2026-02-27 04:50:03

Restarting Challenges

Time of First Successful Submission: 2026-02-27 04:52:45

Challenge Programs

Time of First Successful Submission: 2026-02-27 04:58:20

The Flag File

Time of First Successful Submission: 2026-02-27 04:59:39

Using Privileged Mode

Time of First Successful Submission: 2026-02-27 05:08:42

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-27 05:18:39

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-27 05:17:53