iEatCircuits

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-03-31 19:30:24

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-03-31 19:55:37

Absolute Paths

Time of First Successful Submission: 2026-03-31 19:56:24

Changing position

Time of First Successful Submission: 2026-03-31 19:58:08

Changing to an Absolute Path

Time of First Successful Submission: 2026-03-31 20:00:48

Relative Paths

Time of First Successful Submission: 2026-03-31 20:02:24

Cat

Time of First Successful Submission: 2026-03-31 21:00:43

Ls

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Ls All

Time of First Successful Submission: 2026-03-31 21:28:50

Find

Time of First Successful Submission: 2026-03-31 21:46:17

Piping Echo

Time of First Successful Submission: 2026-04-02 05:39:28

Piping Stdout

Time of First Successful Submission: 2026-04-02 05:41:34

Piping Stdin

Time of First Successful Submission: 2026-04-02 14:14:30


Start Here

12 / 12 1957 / 44758


Using the Terminal

Time of First Successful Submission: 2026-03-31 10:01:58

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-31 10:05:53

Using the GUI Desktop

Time of First Successful Submission: 2026-03-31 10:08:49

Pasting into the Desktop

Time of First Successful Submission: 2026-03-31 10:11:49

Restarting Challenges

Time of First Successful Submission: 2026-03-31 10:15:36

Challenge Programs

Time of First Successful Submission: 2026-03-31 14:29:21

The Flag File

Time of First Successful Submission: 2026-03-31 14:38:32

Using Privileged Mode

Time of First Successful Submission: 2026-03-31 14:52:27

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-31 14:58:40

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-31 15:04:12


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-03-31 19:30:24

Intro to Arguments

Time of First Successful Submission: 2026-03-31 19:32:01

Command History

Time of First Successful Submission: 2026-03-31 19:33:05

The Root

Time of First Successful Submission: 2026-03-31 19:55:37

Program and absolute paths

Time of First Successful Submission: 2026-03-31 19:56:24

Position thy self

Time of First Successful Submission: 2026-03-31 19:58:08

Position elsewhere

Time of First Successful Submission: 2026-03-31 20:00:48

implicit relative paths, from /

Time of First Successful Submission: 2026-03-31 20:02:24

explicit relative paths, from /

Time of First Successful Submission: 2026-03-31 20:03:51

implicit relative path

Time of First Successful Submission: 2026-03-31 20:05:37

home sweet home

Time of First Successful Submission: 2026-03-31 20:11:33

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-31 21:00:43

catting absolute paths

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

more catting practice

Time of First Successful Submission: 2026-03-31 21:04:57

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-31 21:07:57

comparing files

Time of First Successful Submission: 2026-03-31 21:14:56

listing files

Time of First Successful Submission: 2026-03-31 21:17:25

touching files

Time of First Successful Submission: 2026-03-31 21:19:36

removing files

Time of First Successful Submission: 2026-03-31 21:20:39

moving files

Time of First Successful Submission: 2026-03-31 21:23:05

copying files

Time of First Successful Submission: 2026-03-31 21:24:03

hidden files

Time of First Successful Submission: 2026-03-31 21:28:50

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-31 21:39:01

making directories

Time of First Successful Submission: 2026-03-31 21:41:15

finding files

Time of First Successful Submission: 2026-03-31 21:46:17

linking files

Time of First Successful Submission: 2026-03-31 22:09:33

Learning From Documentation

Time of First Successful Submission: 2026-03-31 22:39:18

Learning Complex Usage

Time of First Successful Submission: 2026-03-31 22:42:12

Reading Manuals

Time of First Successful Submission: 2026-03-31 22:45:25

Searching Manuals

Time of First Successful Submission: 2026-03-31 22:48:10

Searching For Manuals

Time of First Successful Submission: 2026-03-31 23:04:43

Helpful Programs

Time of First Successful Submission: 2026-04-01 01:12:50

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: 2026-04-02 04:19:30

Multiple globs

Time of First Successful Submission: 2026-04-02 04:22:22

Mixing globs

Time of First Successful Submission: 2026-04-02 04:41:44

Exclusionary globbing

Time of First Successful Submission: 2026-04-02 04:50:21

Tab completion

Time of First Successful Submission: 2026-04-02 04:53:19

Multiple options for tab completion

Time of First Successful Submission: 2026-04-02 04:57:06

Tab completion on commands

Time of First Successful Submission: 2026-04-02 04:57:54

Redirecting output

Time of First Successful Submission: 2026-04-02 05:39:28

Redirecting more output

Time of First Successful Submission: 2026-04-02 05:41:34

Appending output

Time of First Successful Submission: 2026-04-02 05:56:06

Redirecting errors

Time of First Successful Submission: 2026-04-02 14:12:55

Redirecting input

Time of First Successful Submission: 2026-04-02 14:14:30

Grepping stored results

Time of First Successful Submission: 2026-04-02 14:16:54

Grepping live output

Time of First Successful Submission: 2026-04-02 14:18:27

Grepping errors

Time of First Successful Submission: 2026-04-02 14:33:15

Filtering with grep -v

Time of First Successful Submission: 2026-04-02 14:35:11

Filtering with sed

Time of First Successful Submission: 2026-04-02 14:41:00

Duplicating piped data with tee

Time of First Successful Submission: 2026-04-02 14:53:03

Process substitution for input

Time of First Successful Submission: 2026-04-02 15:25:49

Writing to multiple programs

Time of First Successful Submission: 2026-04-02 16:05:04

Split-piping stderr and stdout

Time of First Successful Submission: 2026-04-03 13:23:25

Named pipes

Time of First Successful Submission: 2026-04-03 14:25:42

Printing Variables

Time of First Successful Submission: 2026-04-03 15:30:49

Setting Variables

Time of First Successful Submission: 2026-04-03 15:33:21

Multi-word Variables

Time of First Successful Submission: 2026-04-03 15:34:58

Exporting Variables

Time of First Successful Submission: 2026-04-03 15:44:00

Printing Exported Variables

Time of First Successful Submission: 2026-04-03 15:45:41

Storing Command Output

Time of First Successful Submission: 2026-04-03 15:52:03

Reading Input

Time of First Successful Submission: 2026-04-03 15:59:13

Reading Files

Time of First Successful Submission: 2026-04-03 16:03:18

Translating characters

Time of First Successful Submission: 2026-04-03 16:45:49

Deleting characters

Time of First Successful Submission: 2026-04-03 16:47:28

Deleting newlines

Time of First Successful Submission: 2026-04-03 16:50:39

Extracting the first lines with head

Time of First Successful Submission: 2026-04-03 16:53:22

Extracting specific sections of text

Time of First Successful Submission: 2026-04-03 16:58:57

Sorting data

Time of First Successful Submission: 2026-04-03 17:02:38

Listing Processes

Time of First Successful Submission: 2026-04-03 17:21:29

Killing Processes

Time of First Successful Submission: 2026-04-03 17:27:02

Interrupting Processes

Time of First Successful Submission: 2026-04-03 17:29:22

Killing Misbehaving Processes

Time of First Successful Submission: 2026-04-03 17:34:37

Suspending Processes

Time of First Successful Submission: 2026-04-03 17:40:14

Resuming Processes

Time of First Successful Submission: 2026-04-03 17:41:38

Backgrounding Processes

Time of First Successful Submission: 2026-04-03 18:03:01

Foregrounding Processes

Time of First Successful Submission: 2026-04-03 18:05:00

Starting Backgrounded Processes

Time of First Successful Submission: 2026-04-03 18:06:14

Process Exit Codes

Time of First Successful Submission: 2026-04-03 18:10:27

Becoming root with su

Time of First Successful Submission: 2026-04-04 03:07:20

Other users with su

Time of First Successful Submission: 2026-04-04 03:11:22

Cracking passwords

Time of First Successful Submission: 2026-04-04 03:17:00

Using sudo

Time of First Successful Submission: 2026-04-04 03:20:06

Changing File Ownership

Time of First Successful Submission: 2026-04-04 14:55:01

Groups and Files

Time of First Successful Submission: 2026-04-04 15:01:08

Fun With Groups Names

Time of First Successful Submission: 2026-04-04 15:03:22

Changing Permissions

Time of First Successful Submission: 2026-04-04 15:27:18

Executable Files

Time of First Successful Submission: 2026-04-04 15:45:40

Permission Tweaking Practice

Time of First Successful Submission: 2026-04-04 15:51:22

Permissions Setting Practice

Time of First Successful Submission: 2026-04-04 15:59:17

The SUID Bit

Time of First Successful Submission: 2026-04-04 16:02:40

Chaining with Semicolons

Time of First Successful Submission: 2026-04-04 16:09:37

Building on Success

Time of First Successful Submission: 2026-04-04 16:11:32

Handling Failure

Time of First Successful Submission: 2026-04-04 16:13:09

Your First Shell Script

Time of First Successful Submission: 2026-04-04 16:15:46

Redirecting Script Output

Time of First Successful Submission: 2026-04-05 05:11:18

Executable Shell Scripts

Time of First Successful Submission: 2026-04-04 16:43:07

Understanding Shebangs

Time of First Successful Submission: 2026-04-04 16:52:20

Scripting with Arguments

Time of First Successful Submission: 2026-04-04 16:54:37

Scripting with Conditionals

Time of First Successful Submission: 2026-04-04 16:59:48

Scripting with Default Cases

Time of First Successful Submission: 2026-04-04 17:31:00

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-04-04 17:35:40

Reading Shell Scripts

Time of First Successful Submission: 2026-04-04 17:44:00

Launching Screen

Time of First Successful Submission: 2026-04-04 18:19:09

Detaching and Attaching

Time of First Successful Submission: 2026-04-05 04:46:45

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-04-05 05:21:30

Switching Windows (tmux)

Time of First Successful Submission: 2026-04-05 05:24:28

The PATH Variable

Time of First Successful Submission: 2026-04-05 06:31:06

Setting PATH

Time of First Successful Submission: 2026-04-05 06:33:33

Finding Commands

Time of First Successful Submission: 2026-04-05 06:36:08

Adding Commands

Time of First Successful Submission: 2026-04-05 06:58:06

Hijacking Commands

Time of First Successful Submission: 2026-04-05 07:13:01

Bashrc Backdoor

Time of First Successful Submission: 2026-04-05 09:10:57

Sniffing Input

Time of First Successful Submission: 2026-04-05 09:24:15

Overshared Directories

Time of First Successful Submission: 2026-04-05 09:47:58

Tricky Linking

Time of First Successful Submission: 2026-04-05 09:58:24

Sniffing Process Arguments

Time of First Successful Submission: 2026-04-05 10:01:15

Snooping on Configurations

Time of First Successful Submission: 2026-04-05 10:04:22

The Fork Bomb

Time of First Successful Submission: 2026-04-05 11:02:16

Disk-Space Doomsday

Time of First Successful Submission: 2026-04-05 11:16:57

rm -rf /

Time of First Successful Submission: 2026-04-05 11:19:49

Life after rm -rf /

Time of First Successful Submission: 2026-04-05 11:28:12

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-04-05 12:18:13


Computing 101

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Your First Register

Time of First Successful Submission: 2026-04-05 14:36:24

Your First Syscall

Time of First Successful Submission: 2026-04-05 15:34:40

Exit Codes

Time of First Successful Submission: 2026-04-05 15:47:36

Building Executables

Time of First Successful Submission: 2026-04-05 16:10:37

Moving Between Registers

Time of First Successful Submission: 2026-04-05 16:17:08

Loading From Memory

Time of First Successful Submission: 2026-04-06 04:36:01

More Loading Practice

Time of First Successful Submission: 2026-04-06 04:37:44

Dereferencing Pointers

Time of First Successful Submission: 2026-04-06 05:01:17

Dereferencing Yourself

Time of First Successful Submission: 2026-04-06 05:04:05

Dereferencing with Offsets

Time of First Successful Submission: 2026-04-06 05:09:13

Stored Addresses

Time of First Successful Submission: 2026-04-06 05:13:46

Double Dereference

Time of First Successful Submission: 2026-04-06 05:16:39

The Stack

Time of First Successful Submission: 2026-04-06 05:32:12

Stack Offsets

Time of First Successful Submission: 2026-04-06 05:38:13

Program Arguments on the Stack

Time of First Successful Submission: 2026-04-06 05:50:15

Popping From the Stack

Time of First Successful Submission: 2026-04-06 05:56:27

Disassembling Programs

Time of First Successful Submission: 2026-04-06 15:59:57

Tracing Syscalls

Time of First Successful Submission: 2026-04-06 16:14:31

Starting GDB

Time of First Successful Submission: 2026-04-06 16:17:51

Quitting GDB

Time of First Successful Submission: 2026-04-06 16:19:15

Starting Programs in GDB

Time of First Successful Submission: 2026-04-06 16:22:48

Disassembling in GDB

Time of First Successful Submission: 2026-04-06 16:24:09

Stepping Through Instructions

Time of First Successful Submission: 2026-04-06 16:26:45

Reading Register Values

Time of First Successful Submission: 2026-04-06 16:29:39

Popping Stack Values

Time of First Successful Submission: 2026-04-06 16:32:08

Examining Memory

Time of First Successful Submission: 2026-04-06 16:36:16

Examining Stack Pointers

Time of First Successful Submission: 2026-04-06 16:42:30

Cooperative Debugging

Time of First Successful Submission: 2026-04-06 17:01:08

Writing Output

Time of First Successful Submission: 2026-04-06 19:26:27

Chaining Syscalls

Time of First Successful Submission: 2026-04-06 19:31:50

Writing Strings

Time of First Successful Submission: 2026-04-06 19:34:11

Reading Data

Time of First Successful Submission: 2026-04-07 11:07:49

Opening Files

Time of First Successful Submission: 2026-04-07 11:56:17

Hardcoding the Filename

Time of First Successful Submission: 2026-04-07 12:24:12

Comparing Values

Time of First Successful Submission: 2026-04-09 17:26:11

Comparing Characters

Time of First Successful Submission: 2026-04-09 17:39:27

Conditional Control Flow

Time of First Successful Submission: 2026-04-09 18:20:52

Comparing Strings

Time of First Successful Submission: 2026-04-09 18:35:42

Reverse the Password

Time of First Successful Submission: 2026-04-09 18:55:34

Conditionals Without Conditionals

Time of First Successful Submission: 2026-04-10 10:33:35

Looping

Time of First Successful Submission: 2026-04-10 15:27:02

Reverse the Calculation

Time of First Successful Submission: 2026-04-10 17:41:13

Reverse the Reverse

Time of First Successful Submission: 2026-04-11 10:30:24

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-04-12 09:15:14

Loops on Data

Time of First Successful Submission: 2026-04-12 09:28:23

set-register

Time of First Successful Submission: 2026-04-12 15:27:45

set-multiple-registers

Time of First Successful Submission: 2026-04-12 15:29:10

add-to-register

Time of First Successful Submission: 2026-04-12 15:35:55

linear-equation-registers

Time of First Successful Submission: 2026-04-12 15:39:11

integer-division

Time of First Successful Submission: 2026-04-12 16:02:25

modulo-operation

Time of First Successful Submission: 2026-04-12 16:05:42

set-upper-byte

Time of First Successful Submission: 2026-04-12 16:07:34

efficient-modulo

Time of First Successful Submission: 2026-04-12 16:18:38

byte-extraction

Time of First Successful Submission: 2026-04-12 17:00:16

bitwise-and

Time of First Successful Submission: 2026-04-12 17:59:19

check-even

Time of First Successful Submission: 2026-04-12 18:22:22

memory-read

Time of First Successful Submission: 2026-04-12 19:19:36

memory-write

Time of First Successful Submission: 2026-04-12 19:20:40

memory-increment

Time of First Successful Submission: 2026-04-12 19:29:24

byte-access

Time of First Successful Submission: 2026-04-12 19:41:57

memory-size-access

Time of First Successful Submission: 2026-04-12 19:44:17

little-endian-write

Time of First Successful Submission: 2026-04-12 20:01:51

memory-sum

Time of First Successful Submission: 2026-04-12 20:31:51

stack-subtraction

Time of First Successful Submission: 2026-04-12 20:53:56

swap-stack-values

Time of First Successful Submission: 2026-04-12 21:09:26

average-stack-values

Time of First Successful Submission: 2026-04-12 21:16:14

absolute-jump

Time of First Successful Submission: 2026-04-12 21:26:52

relative-jump

Time of First Successful Submission: 2026-04-12 22:10:37

jump-trampoline

Time of First Successful Submission: 2026-04-12 22:37:18

conditional-jump

Time of First Successful Submission: 2026-04-13 10:59:59

indirect-jump

Time of First Successful Submission: 2026-04-13 16:58:27

average-loop

Time of First Successful Submission: 2026-04-13 17:48:16

count-non-zero

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

Exit

Time of First Successful Submission: 2026-04-19 14:17:02


GCA CTF

12 / 104 2205 / 45039


Using the Terminal

Time of First Successful Submission: 2026-03-31 10:01:58

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-31 10:05:53

Using the GUI Desktop

Time of First Successful Submission: 2026-03-31 10:08:49

Pasting into the Desktop

Time of First Successful Submission: 2026-03-31 10:11:49

Connecting over SSH

Time of First Successful Submission: 2026-03-31 10:12:53

Restarting Challenges

Time of First Successful Submission: 2026-03-31 10:15:36

Getting Help

Time of First Successful Submission: 2026-03-31 10:26:44

Challenge Programs

Time of First Successful Submission: 2026-03-31 14:29:21

The Flag File

Time of First Successful Submission: 2026-03-31 14:38:32

Using Privileged Mode

Time of First Successful Submission: 2026-03-31 14:52:27

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-31 14:58:40

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-31 15:04:12