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Triple Dereference

Time of First Successful Submission: 2025-12-09 11:34:00


Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-11-20 07:36:22

Command Arguments

Time of First Successful Submission: 2025-11-20 07:38:58

Command History

Time of First Successful Submission: 2025-11-20 07:39:51

The Root Path

Time of First Successful Submission: 2025-11-20 07:45:52

Absolute Paths

Time of First Successful Submission: 2025-11-20 07:49:45

Changing position

Time of First Successful Submission: 2025-11-20 07:58:09

Changing to an Absolute Path

Time of First Successful Submission: 2025-11-20 08:03:05

Relative Paths

Time of First Successful Submission: 2025-11-21 06:41:49

Cat

Time of First Successful Submission: 2025-11-21 07:47:47

Ls

Time of First Successful Submission: 2025-11-21 08:40:12

Ls All

Time of First Successful Submission: 2025-11-21 08:50:08

Find

Time of First Successful Submission: 2025-11-21 09:37:39

Piping Echo

Time of First Successful Submission: 2025-11-22 12:30:54

Piping Stdout

Time of First Successful Submission: 2025-11-22 15:40:59

Piping Stdin

Time of First Successful Submission: 2025-11-24 12:26:17


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-11-20 07:36:22

Intro to Arguments

Time of First Successful Submission: 2025-11-20 07:38:58

Command History

Time of First Successful Submission: 2025-11-20 07:39:51

The Root

Time of First Successful Submission: 2025-11-20 07:45:52

Program and absolute paths

Time of First Successful Submission: 2025-11-20 07:49:45

Position thy self

Time of First Successful Submission: 2025-11-20 07:58:09

Position elsewhere

Time of First Successful Submission: 2025-11-20 08:03:05

implicit relative paths, from /

Time of First Successful Submission: 2025-11-21 06:41:49

explicit relative paths, from /

Time of First Successful Submission: 2025-11-21 07:28:22

implicit relative path

Time of First Successful Submission: 2025-11-21 07:30:55

home sweet home

Time of First Successful Submission: 2025-11-21 07:38:59

cat: not the pet, but the command!

Time of First Successful Submission: 2025-11-21 07:47:47

catting absolute paths

Time of First Successful Submission: 2025-11-21 07:49:23

more catting practice

Time of First Successful Submission: 2025-11-21 07:51:18

grepping for a needle in a haystack

Time of First Successful Submission: 2025-11-21 07:54:21

comparing files

Time of First Successful Submission: 2025-11-21 08:37:10

listing files

Time of First Successful Submission: 2025-11-21 08:40:12

touching files

Time of First Successful Submission: 2025-11-21 08:43:09

removing files

Time of First Successful Submission: 2025-11-21 08:44:43

moving files

Time of First Successful Submission: 2025-11-21 08:46:37

copying files

Time of First Successful Submission: 2025-11-21 08:47:27

hidden files

Time of First Successful Submission: 2025-11-21 08:50:08

An Epic Filesystem Quest

Time of First Successful Submission: 2025-11-21 08:59:51

making directories

Time of First Successful Submission: 2025-11-21 09:01:51

finding files

Time of First Successful Submission: 2025-11-21 09:37:39

linking files

Time of First Successful Submission: 2025-11-21 10:45:15

Learning From Documentation

Time of First Successful Submission: 2025-11-21 11:20:51

Learning Complex Usage

Time of First Successful Submission: 2025-11-21 11:25:33

Reading Manuals

Time of First Successful Submission: 2025-11-21 11:32:00

Searching Manuals

Time of First Successful Submission: 2025-11-21 11:35:31

Searching For Manuals

Time of First Successful Submission: 2025-11-21 12:21:15

Helpful Programs

Time of First Successful Submission: 2025-11-21 12:59:53

Help for Builtins

Time of First Successful Submission: 2025-11-21 13:02:47

Matching with *

Time of First Successful Submission: 2025-11-21 17:47:57

Matching with ?

Time of First Successful Submission: 2025-11-21 17:54:46

Matching with []

Time of First Successful Submission: 2025-11-21 18:02:41

Matching paths with []

Time of First Successful Submission: 2025-11-21 18:04:37

Multiple globs

Time of First Successful Submission: 2025-11-21 18:07:19

Mixing globs

Time of First Successful Submission: 2025-11-21 18:15:38

Exclusionary globbing

Time of First Successful Submission: 2025-11-21 18:19:05

Tab completion

Time of First Successful Submission: 2025-11-21 18:27:45

Multiple options for tab completion

Time of First Successful Submission: 2025-11-21 18:52:22

Tab completion on commands

Time of First Successful Submission: 2025-11-21 18:53:44

Redirecting output

Time of First Successful Submission: 2025-11-22 12:30:54

Redirecting more output

Time of First Successful Submission: 2025-11-22 15:40:59

Appending output

Time of First Successful Submission: 2025-11-22 16:16:12

Redirecting errors

Time of First Successful Submission: 2025-11-24 12:22:56

Redirecting input

Time of First Successful Submission: 2025-11-24 12:26:17

Grepping stored results

Time of First Successful Submission: 2025-11-24 12:29:46

Grepping live output

Time of First Successful Submission: 2025-11-24 12:32:16

Grepping errors

Time of First Successful Submission: 2025-11-24 12:37:20

Filtering with grep -v

Time of First Successful Submission: 2025-11-24 12:39:38

Filtering with sed

Time of First Successful Submission: 2025-11-24 12:42:57

Duplicating piped data with tee

Time of First Successful Submission: 2025-11-24 12:57:29

Process substitution for input

Time of First Successful Submission: 2025-11-24 13:28:38

Writing to multiple programs

Time of First Successful Submission: 2025-11-24 13:49:48

Split-piping stderr and stdout

Time of First Successful Submission: 2025-11-24 14:16:03

Named pipes

Time of First Successful Submission: 2025-11-24 14:23:02

Printing Variables

Time of First Successful Submission: 2025-11-27 07:32:33

Setting Variables

Time of First Successful Submission: 2025-11-27 07:35:19

Multi-word Variables

Time of First Successful Submission: 2025-11-27 07:36:42

Exporting Variables

Time of First Successful Submission: 2025-11-27 07:42:22

Printing Exported Variables

Time of First Successful Submission: 2025-11-27 07:44:17

Storing Command Output

Time of First Successful Submission: 2025-11-27 07:46:50

Reading Input

Time of First Successful Submission: 2025-11-27 07:48:58

Reading Files

Time of First Successful Submission: 2025-11-27 07:54:04

Translating characters

Time of First Successful Submission: 2025-11-27 08:34:53

Deleting characters

Time of First Successful Submission: 2025-11-27 08:37:34

Deleting newlines

Time of First Successful Submission: 2025-11-27 08:40:08

Extracting the first lines with head

Time of First Successful Submission: 2025-11-27 08:42:26

Extracting specific sections of text

Time of First Successful Submission: 2025-11-27 08:45:49

Sorting data

Time of First Successful Submission: 2025-11-27 08:48:45

Listing Processes

Time of First Successful Submission: 2025-11-27 08:56:53

Killing Processes

Time of First Successful Submission: 2025-11-27 09:00:42

Interrupting Processes

Time of First Successful Submission: 2025-11-27 09:01:48

Killing Misbehaving Processes

Time of First Successful Submission: 2025-11-27 09:06:15

Suspending Processes

Time of First Successful Submission: 2025-11-27 13:10:41

Resuming Processes

Time of First Successful Submission: 2025-11-27 13:15:33

Backgrounding Processes

Time of First Successful Submission: 2025-11-27 13:21:22

Foregrounding Processes

Time of First Successful Submission: 2025-11-27 13:24:26

Starting Backgrounded Processes

Time of First Successful Submission: 2025-11-27 13:26:13

Process Exit Codes

Time of First Successful Submission: 2025-11-27 13:28:42

Becoming root with su

Time of First Successful Submission: 2025-11-27 13:35:33

Other users with su

Time of First Successful Submission: 2025-11-27 13:36:57

Cracking passwords

Time of First Successful Submission: 2025-11-27 13:49:09

Using sudo

Time of First Successful Submission: 2025-11-27 13:54:13

Changing File Ownership

Time of First Successful Submission: 2025-11-27 13:58:50

Groups and Files

Time of First Successful Submission: 2025-11-27 14:04:14

Fun With Groups Names

Time of First Successful Submission: 2025-11-27 14:05:42

Changing Permissions

Time of First Successful Submission: 2025-11-27 14:15:52

Executable Files

Time of First Successful Submission: 2025-11-27 14:19:16

Permission Tweaking Practice

Time of First Successful Submission: 2025-11-27 14:26:34

Permissions Setting Practice

Time of First Successful Submission: 2025-12-01 08:13:50

The SUID Bit

Time of First Successful Submission: 2025-12-01 08:18:12

Chaining with Semicolons

Time of First Successful Submission: 2025-12-01 08:20:27

Building on Success

Time of First Successful Submission: 2025-12-01 08:22:38

Handling Failure

Time of First Successful Submission: 2025-12-01 08:23:42

Your First Shell Script

Time of First Successful Submission: 2025-12-01 08:27:12

Redirecting Script Output

Time of First Successful Submission: 2025-12-01 08:29:40

Executable Shell Scripts

Time of First Successful Submission: 2025-12-01 08:32:14

Understanding Shebangs

Time of First Successful Submission: 2025-12-01 08:37:56

Scripting with Arguments

Time of First Successful Submission: 2025-12-01 08:43:13

Scripting with Conditionals

Time of First Successful Submission: 2025-12-01 08:47:00

Scripting with Default Cases

Time of First Successful Submission: 2025-12-01 08:49:06

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-01 08:54:07

Reading Shell Scripts

Time of First Successful Submission: 2025-12-01 08:57:06

Launching Screen

Time of First Successful Submission: 2025-12-02 11:16:39

Detaching and Attaching

Time of First Successful Submission: 2025-12-02 11:19:02

Finding Sessions

Time of First Successful Submission: 2025-12-02 11:23:07

Switching Windows

Time of First Successful Submission: 2025-12-02 11:26:16

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-02 11:29:34

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-02 11:32:13

The PATH Variable

Time of First Successful Submission: 2025-12-02 11:46:35

Setting PATH

Time of First Successful Submission: 2025-12-02 11:51:53

Finding Commands

Time of First Successful Submission: 2025-12-02 11:53:57

Adding Commands

Time of First Successful Submission: 2025-12-02 12:15:26

Hijacking Commands

Time of First Successful Submission: 2025-12-02 12:53:06

Bashrc Backdoor

Time of First Successful Submission: 2025-12-02 13:07:28

Sniffing Input

Time of First Successful Submission: 2025-12-03 09:11:27

Overshared Directories

Time of First Successful Submission: 2025-12-03 09:22:51

Tricky Linking

Time of First Successful Submission: 2025-12-04 08:33:52

Sniffing Process Arguments

Time of First Successful Submission: 2025-12-04 08:45:43

Snooping on Configurations

Time of First Successful Submission: 2025-12-04 08:50:42

The Fork Bomb

Time of First Successful Submission: 2025-12-05 07:49:09

Disk-Space Doomsday

Time of First Successful Submission: 2025-12-05 10:05:44

rm -rf /

Time of First Successful Submission: 2025-12-05 10:09:06

Life after rm -rf /

Time of First Successful Submission: 2025-12-05 10:22:32

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-12-05 10:30:26


Computing 101

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Your First Register

Time of First Successful Submission: 2025-12-09 08:05:55

Your First Syscall

Time of First Successful Submission: 2025-12-09 09:54:48

Exit Codes

Time of First Successful Submission: 2025-12-09 09:58:22

Building Executables

Time of First Successful Submission: 2025-12-09 10:05:14

Moving Between Registers

Time of First Successful Submission: 2025-12-09 10:14:06

Loading From Memory

Time of First Successful Submission: 2025-12-09 10:33:10

More Loading Practice

Time of First Successful Submission: 2025-12-09 10:34:46

Dereferencing Pointers

Time of First Successful Submission: 2025-12-09 10:54:27

Dereferencing Yourself

Time of First Successful Submission: 2025-12-09 10:57:39

Dereferencing with Offsets

Time of First Successful Submission: 2025-12-09 11:01:03

Stored Addresses

Time of First Successful Submission: 2025-12-09 11:09:07

Double Dereference

Time of First Successful Submission: 2025-12-09 11:21:30

Tracing Syscalls

Time of First Successful Submission: 2025-12-09 10:19:52

Starting GDB

Time of First Successful Submission: 2025-12-09 10:21:55

Starting Programs in GDB

Time of First Successful Submission: 2025-12-09 10:23:51

Writing Output

Time of First Successful Submission: 2025-12-09 13:52:47

Chaining Syscalls

Time of First Successful Submission: 2025-12-09 14:04:12

Writing Strings

Time of First Successful Submission: 2025-12-09 14:05:52

Reading Data

Time of First Successful Submission: 2025-12-10 06:40:14

set-register

Time of First Successful Submission: 2025-12-10 06:48:48

set-multiple-registers

Time of First Successful Submission: 2025-12-10 06:55:24

add-to-register

Time of First Successful Submission: 2025-12-10 10:11:01

linear-equation-registers

Time of First Successful Submission: 2025-12-10 13:23:50

integer-division

Time of First Successful Submission: 2025-12-10 13:41:45

modulo-operation

Time of First Successful Submission: 2025-12-11 07:27:50

set-upper-byte

Time of First Successful Submission: 2025-12-11 07:32:38

efficient-modulo

Time of First Successful Submission: 2025-12-11 08:02:50