3b0

🐧

Italy

Intro to Programming Languages

15 / 234 9137 / 32450

Commands

Time of First Successful Submission: 2026-03-10 12:43:20

Command Arguments

Time of First Successful Submission: 2026-03-10 12:45:13

Command History

Time of First Successful Submission: 2026-03-10 12:46:03

The Root Path

Time of First Successful Submission: 2026-03-10 12:57:08

Absolute Paths

Time of First Successful Submission: 2026-03-10 13:00:07

Changing position

Time of First Successful Submission: 2026-03-10 13:06:14

Changing to an Absolute Path

Time of First Successful Submission: 2026-03-10 13:12:11

Relative Paths

Time of First Successful Submission: 2026-03-10 13:17:04

Cat

Time of First Successful Submission: 2026-03-10 13:44:59

Ls

Time of First Successful Submission: 2026-03-10 16:15:55

Ls All

Time of First Successful Submission: 2026-03-10 16:22:45

Find

Time of First Successful Submission: 2026-03-10 16:45:27

Piping Echo

Time of First Successful Submission: 2026-03-11 10:36:55

Piping Stdout

Time of First Successful Submission: 2026-03-11 10:49:12

Piping Stdin

Time of First Successful Submission: 2026-03-11 11:12:31

Start Here

12 / 12 1732 / 43854

Using the Terminal

Time of First Successful Submission: 2026-03-10 09:59:13

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-10 10:01:39

Using the GUI Desktop

Time of First Successful Submission: 2026-03-10 10:05:20

Pasting into the Desktop

Time of First Successful Submission: 2026-03-10 10:07:42

Restarting Challenges

Time of First Successful Submission: 2026-03-10 10:24:04

Challenge Programs

Time of First Successful Submission: 2026-03-12 21:29:42

The Flag File

Time of First Successful Submission: 2026-03-12 21:33:41

Using Privileged Mode

Time of First Successful Submission: 2026-03-16 10:27:13

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-16 10:30:15

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-16 10:30:50

Linux Luminarium

128 / 128 2473 / 32866

Intro to Commands

Time of First Successful Submission: 2026-03-10 12:43:20

Intro to Arguments

Time of First Successful Submission: 2026-03-10 12:45:13

Command History

Time of First Successful Submission: 2026-03-10 12:46:03

The Root

Time of First Successful Submission: 2026-03-10 12:57:08

Program and absolute paths

Time of First Successful Submission: 2026-03-10 13:00:07

Position thy self

Time of First Successful Submission: 2026-03-10 13:06:14

Position elsewhere

Time of First Successful Submission: 2026-03-10 13:12:11

implicit relative paths, from /

Time of First Successful Submission: 2026-03-10 13:17:04

explicit relative paths, from /

Time of First Successful Submission: 2026-03-10 13:18:54

implicit relative path

Time of First Successful Submission: 2026-03-10 13:23:07

home sweet home

Time of First Successful Submission: 2026-03-10 13:34:49

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-10 13:44:59

catting absolute paths

Time of First Successful Submission: 2026-03-10 13:45:58

more catting practice

Time of First Successful Submission: 2026-03-10 14:04:54

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-10 14:09:08

comparing files

Time of First Successful Submission: 2026-03-10 16:12:44

listing files

Time of First Successful Submission: 2026-03-10 16:15:55

touching files

Time of First Successful Submission: 2026-03-10 16:17:40

removing files

Time of First Successful Submission: 2026-03-10 16:18:38

moving files

Time of First Successful Submission: 2026-03-10 16:20:46

copying files

Time of First Successful Submission: 2026-03-10 16:22:03

hidden files

Time of First Successful Submission: 2026-03-10 16:22:45

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-10 16:33:15

making directories

Time of First Successful Submission: 2026-03-10 16:38:16

finding files

Time of First Successful Submission: 2026-03-10 16:45:27

linking files

Time of First Successful Submission: 2026-03-10 17:05:36

Learning From Documentation

Time of First Successful Submission: 2026-03-10 17:16:20

Learning Complex Usage

Time of First Successful Submission: 2026-03-10 17:20:00

Reading Manuals

Time of First Successful Submission: 2026-03-10 17:39:44

Searching Manuals

Time of First Successful Submission: 2026-03-10 17:44:02

Searching For Manuals

Time of First Successful Submission: 2026-03-10 17:56:13

Helpful Programs

Time of First Successful Submission: 2026-03-10 18:00:23

Help for Builtins

Time of First Successful Submission: 2026-03-10 18:05:53

Matching with *

Time of First Successful Submission: 2026-03-11 09:52:14

Matching with ?

Time of First Successful Submission: 2026-03-11 09:53:35

Matching with []

Time of First Successful Submission: 2026-03-11 10:01:01

Matching paths with []

Time of First Successful Submission: 2026-03-11 10:04:02

Multiple globs

Time of First Successful Submission: 2026-03-11 10:06:39

Mixing globs

Time of First Successful Submission: 2026-03-11 10:14:41

Exclusionary globbing

Time of First Successful Submission: 2026-03-11 10:17:53

Tab completion

Time of First Successful Submission: 2026-03-11 10:19:18

Multiple options for tab completion

Time of First Successful Submission: 2026-03-11 10:27:14

Tab completion on commands

Time of First Successful Submission: 2026-03-11 10:28:04

Redirecting output

Time of First Successful Submission: 2026-03-11 10:36:55

Redirecting more output

Time of First Successful Submission: 2026-03-11 10:49:12

Appending output

Time of First Successful Submission: 2026-03-11 10:53:08

Redirecting errors

Time of First Successful Submission: 2026-03-11 11:08:39

Redirecting input

Time of First Successful Submission: 2026-03-11 11:12:31

Grepping stored results

Time of First Successful Submission: 2026-03-11 11:15:47

Grepping live output

Time of First Successful Submission: 2026-03-11 11:18:06

Grepping errors

Time of First Successful Submission: 2026-03-11 11:26:41

Filtering with grep -v

Time of First Successful Submission: 2026-03-11 11:28:13

Filtering with sed

Time of First Successful Submission: 2026-03-11 11:34:36

Duplicating piped data with tee

Time of First Successful Submission: 2026-03-12 11:34:51

Process substitution for input

Time of First Successful Submission: 2026-03-12 11:12:02

Writing to multiple programs

Time of First Successful Submission: 2026-03-12 11:21:31

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-12 11:26:34

Named pipes

Time of First Successful Submission: 2026-03-12 11:31:25

Printing Variables

Time of First Successful Submission: 2026-03-12 15:07:48

Setting Variables

Time of First Successful Submission: 2026-03-12 15:14:53

Multi-word Variables

Time of First Successful Submission: 2026-03-12 15:16:43

Exporting Variables

Time of First Successful Submission: 2026-03-12 15:23:47

Printing Exported Variables

Time of First Successful Submission: 2026-03-12 15:24:58

Storing Command Output

Time of First Successful Submission: 2026-03-12 15:29:07

Reading Input

Time of First Successful Submission: 2026-03-12 15:33:16

Reading Files

Time of First Successful Submission: 2026-03-12 15:37:34

Translating characters

Time of First Successful Submission: 2026-03-12 15:48:19

Deleting characters

Time of First Successful Submission: 2026-03-12 16:23:29

Deleting newlines

Time of First Successful Submission: 2026-03-12 16:31:09

Extracting the first lines with head

Time of First Successful Submission: 2026-03-12 21:11:53

Extracting specific sections of text

Time of First Successful Submission: 2026-03-12 21:18:54

Sorting data

Time of First Successful Submission: 2026-03-12 21:22:56

Listing Processes

Time of First Successful Submission: 2026-03-13 09:37:16

Killing Processes

Time of First Successful Submission: 2026-03-13 09:39:15

Interrupting Processes

Time of First Successful Submission: 2026-03-13 09:40:30

Killing Misbehaving Processes

Time of First Successful Submission: 2026-03-13 09:48:10

Suspending Processes

Time of First Successful Submission: 2026-03-13 09:50:41

Resuming Processes

Time of First Successful Submission: 2026-03-13 09:55:12

Backgrounding Processes

Time of First Successful Submission: 2026-03-13 10:00:27

Foregrounding Processes

Time of First Successful Submission: 2026-03-13 10:02:35

Starting Backgrounded Processes

Time of First Successful Submission: 2026-03-13 10:05:59

Process Exit Codes

Time of First Successful Submission: 2026-03-13 10:14:49

Becoming root with su

Time of First Successful Submission: 2026-03-13 10:31:29

Other users with su

Time of First Successful Submission: 2026-03-13 10:33:13

Cracking passwords

Time of First Successful Submission: 2026-03-13 10:46:54

Using sudo

Time of First Successful Submission: 2026-03-13 10:52:27

Changing File Ownership

Time of First Successful Submission: 2026-03-15 19:50:51

Groups and Files

Time of First Successful Submission: 2026-03-15 19:56:34

Fun With Groups Names

Time of First Successful Submission: 2026-03-15 19:58:45

Changing Permissions

Time of First Successful Submission: 2026-03-15 20:15:11

Executable Files

Time of First Successful Submission: 2026-03-15 20:17:42

Permission Tweaking Practice

Time of First Successful Submission: 2026-03-15 20:30:13

Permissions Setting Practice

Time of First Successful Submission: 2026-03-15 20:42:46

The SUID Bit

Time of First Successful Submission: 2026-03-15 21:51:30

Chaining with Semicolons

Time of First Successful Submission: 2026-03-16 09:18:45

Building on Success

Time of First Successful Submission: 2026-03-16 09:20:36

Handling Failure

Time of First Successful Submission: 2026-03-16 09:21:54

Your First Shell Script

Time of First Successful Submission: 2026-03-16 09:26:15

Redirecting Script Output

Time of First Successful Submission: 2026-03-16 09:32:51

Executable Shell Scripts

Time of First Successful Submission: 2026-03-16 09:40:48

Understanding Shebangs

Time of First Successful Submission: 2026-03-16 09:47:43

Scripting with Arguments

Time of First Successful Submission: 2026-03-16 10:00:19

Scripting with Conditionals

Time of First Successful Submission: 2026-03-16 10:07:33

Scripting with Default Cases

Time of First Successful Submission: 2026-03-16 10:09:25

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-16 10:12:41

Reading Shell Scripts

Time of First Successful Submission: 2026-03-16 10:18:52

Launching Screen

Time of First Successful Submission: 2026-03-16 10:47:48

Detaching and Attaching

Time of First Successful Submission: 2026-03-16 10:58:52

Finding Sessions

Time of First Successful Submission: 2026-03-16 12:23:25

Switching Windows

Time of First Successful Submission: 2026-03-16 12:28:05

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-16 12:33:06

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-16 12:34:58

The PATH Variable

Time of First Successful Submission: 2026-03-16 12:51:13

Setting PATH

Time of First Successful Submission: 2026-03-16 12:55:07

Finding Commands

Time of First Successful Submission: 2026-03-16 13:00:25

Adding Commands

Time of First Successful Submission: 2026-03-16 13:10:24

Hijacking Commands

Time of First Successful Submission: 2026-03-16 13:19:05

Bashrc Backdoor

Time of First Successful Submission: 2026-03-16 13:33:48

Sniffing Input

Time of First Successful Submission: 2026-03-16 15:23:31

Overshared Directories

Time of First Successful Submission: 2026-03-16 15:35:36

Tricky Linking

Time of First Successful Submission: 2026-03-16 15:54:28

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-16 15:58:44

Snooping on Configurations

Time of First Successful Submission: 2026-03-16 16:05:40

The Fork Bomb

Time of First Successful Submission: 2026-03-16 16:27:18

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-16 16:33:29

rm -rf /

Time of First Successful Submission: 2026-03-16 16:38:05

Life after rm -rf /

Time of First Successful Submission: 2026-03-16 16:44:19

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-16 16:52:38

Computing 101

82 / 94 697 / 21753

Your First Register

Time of First Successful Submission: 2026-03-17 10:46:58

Your First Syscall

Time of First Successful Submission: 2026-03-17 10:55:23

Exit Codes

Time of First Successful Submission: 2026-03-17 11:00:06

Building Executables

Time of First Successful Submission: 2026-03-17 11:21:21

Moving Between Registers

Time of First Successful Submission: 2026-03-17 11:30:09

Loading From Memory

Time of First Successful Submission: 2026-03-18 11:41:18

More Loading Practice

Time of First Successful Submission: 2026-03-18 12:49:42

Dereferencing Pointers

Time of First Successful Submission: 2026-03-18 12:58:25

Dereferencing Yourself

Time of First Successful Submission: 2026-03-18 13:04:15

Dereferencing with Offsets

Time of First Successful Submission: 2026-03-18 17:09:41

Stored Addresses

Time of First Successful Submission: 2026-03-18 17:17:54

Double Dereference

Time of First Successful Submission: 2026-03-18 17:34:48

The Stack

Time of First Successful Submission: 2026-03-18 17:44:49

Stack Offsets

Time of First Successful Submission: 2026-03-18 17:49:54

Program Arguments on the Stack

Time of First Successful Submission: 2026-03-18 17:59:17

Popping From the Stack

Time of First Successful Submission: 2026-03-18 18:06:05

Disassembling Programs

Time of First Successful Submission: 2026-03-19 10:16:22

Tracing Syscalls

Time of First Successful Submission: 2026-03-19 10:23:39

Starting GDB

Time of First Successful Submission: 2026-03-19 10:27:53

Quitting GDB

Time of First Successful Submission: 2026-03-19 10:29:50

Starting Programs in GDB

Time of First Successful Submission: 2026-03-19 10:35:29

Disassembling in GDB

Time of First Successful Submission: 2026-03-19 10:39:01

Stepping Through Instructions

Time of First Successful Submission: 2026-03-19 10:44:19

Reading Register Values

Time of First Successful Submission: 2026-03-19 10:53:12

Popping Stack Values

Time of First Successful Submission: 2026-03-19 10:57:04

Examining Memory

Time of First Successful Submission: 2026-03-19 11:02:52

Examining Stack Pointers

Time of First Successful Submission: 2026-03-19 11:22:10

Cooperative Debugging

Time of First Successful Submission: 2026-03-19 11:34:59

Writing Output

Time of First Successful Submission: 2026-03-19 16:23:49

Chaining Syscalls

Time of First Successful Submission: 2026-03-19 16:29:36

Writing Strings

Time of First Successful Submission: 2026-03-19 16:35:17

Reading Data

Time of First Successful Submission: 2026-03-19 16:49:30

Opening Files

Time of First Successful Submission: 2026-03-19 17:01:12

Hardcoding the Filename

Time of First Successful Submission: 2026-03-19 17:21:19

Comparing Values

Time of First Successful Submission: 2026-03-20 17:19:58

Comparing Characters

Time of First Successful Submission: 2026-03-22 12:13:13

Conditional Control Flow

Time of First Successful Submission: 2026-03-22 12:30:09

Comparing Strings

Time of First Successful Submission: 2026-03-22 12:40:42

Reverse the Password

Time of First Successful Submission: 2026-03-22 13:08:25

Conditionals Without Conditionals

Time of First Successful Submission: 2026-03-22 16:27:44

Looping

Time of First Successful Submission: 2026-03-23 10:22:53

Reverse the Calculation

Time of First Successful Submission: 2026-03-23 10:37:22

Reverse the Reverse

Time of First Successful Submission: 2026-03-23 11:11:12

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-03-23 11:19:51

Loops on Data

Time of First Successful Submission: 2026-03-23 11:30:04

set-register

Time of First Successful Submission: 2026-03-23 11:58:46

set-multiple-registers

Time of First Successful Submission: 2026-03-23 12:05:52

add-to-register

Time of First Successful Submission: 2026-03-23 12:09:55

linear-equation-registers

Time of First Successful Submission: 2026-03-23 15:10:22

integer-division

Time of First Successful Submission: 2026-03-23 15:28:05

modulo-operation

Time of First Successful Submission: 2026-03-23 15:47:19

set-upper-byte

Time of First Successful Submission: 2026-03-23 15:52:25

efficient-modulo

Time of First Successful Submission: 2026-03-23 16:21:43

byte-extraction

Time of First Successful Submission: 2026-03-23 16:49:54

bitwise-and

Time of First Successful Submission: 2026-03-24 08:22:31

check-even

Time of First Successful Submission: 2026-03-24 08:52:08

memory-read

Time of First Successful Submission: 2026-03-24 09:25:27

memory-write

Time of First Successful Submission: 2026-03-24 09:30:29

memory-increment

Time of First Successful Submission: 2026-03-24 09:39:28

byte-access

Time of First Successful Submission: 2026-03-24 09:46:12

memory-size-access

Time of First Successful Submission: 2026-03-24 09:56:22

little-endian-write

Time of First Successful Submission: 2026-03-24 15:23:38

memory-sum

Time of First Successful Submission: 2026-03-24 15:36:42

stack-subtraction

Time of First Successful Submission: 2026-03-24 15:41:48

swap-stack-values

Time of First Successful Submission: 2026-03-25 10:47:26

average-stack-values

Time of First Successful Submission: 2026-03-25 10:56:24

absolute-jump

Time of First Successful Submission: 2026-03-25 15:52:50

relative-jump

Time of First Successful Submission: 2026-03-25 16:13:44

jump-trampoline

Time of First Successful Submission: 2026-03-25 16:19:55

conditional-jump

Time of First Successful Submission: 2026-03-25 17:22:59

indirect-jump

Time of First Successful Submission: 2026-03-26 10:26:50

average-loop

Time of First Successful Submission: 2026-03-26 16:10:43

count-non-zero

Time of First Successful Submission: 2026-03-26 16:47:23

Exit

Time of First Successful Submission: 2026-04-01 08:47:49

Socket

Time of First Successful Submission: 2026-04-01 09:12:55

Bind

Time of First Successful Submission: 2026-04-01 09:43:36

Listen

Time of First Successful Submission: 2026-04-01 10:05:45

Accept

Time of First Successful Submission: 2026-04-01 11:12:43

Static Response

Time of First Successful Submission: 2026-04-01 12:14:19

Dynamic Response

Time of First Successful Submission: 2026-04-02 10:12:55

Iterative GET Server

Time of First Successful Submission: 2026-04-02 10:58:11

Concurrent GET Server

Time of First Successful Submission: 2026-04-02 16:32:46

GCA CTF

12 / 104 1980 / 44133

Using the Terminal

Time of First Successful Submission: 2026-03-10 09:59:13

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-10 10:01:39

Using the GUI Desktop

Time of First Successful Submission: 2026-03-10 10:05:20

Pasting into the Desktop

Time of First Successful Submission: 2026-03-10 10:07:42

Connecting over SSH

Time of First Successful Submission: 2026-03-10 10:13:22

Restarting Challenges

Time of First Successful Submission: 2026-03-10 10:24:04

Getting Help

Time of First Successful Submission: 2026-03-10 10:27:38

Challenge Programs

Time of First Successful Submission: 2026-03-12 21:29:42

The Flag File

Time of First Successful Submission: 2026-03-12 21:33:41

Using Privileged Mode

Time of First Successful Submission: 2026-03-16 10:27:13

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-16 10:30:15

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-16 10:30:50