vulfilip

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-05-02 22:11:52

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-05-02 22:16:00

Absolute Paths

Time of First Successful Submission: 2026-05-02 22:16:46

Changing position

Time of First Successful Submission: 2026-05-02 22:17:32

Changing to an Absolute Path

Time of First Successful Submission: 2026-05-02 22:18:18

Relative Paths

Time of First Successful Submission: 2026-05-02 22:19:22

Cat

Time of First Successful Submission: 2026-05-04 21:19:01

Ls

Time of First Successful Submission: 2026-05-04 21:28:39

Ls All

Time of First Successful Submission: 2026-05-04 21:36:56

Find

Time of First Successful Submission: 2026-05-04 22:08:34

Piping Echo

Time of First Successful Submission: 2026-05-05 13:18:51

Piping Stdout

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Piping Stdin

Time of First Successful Submission: 2026-05-05 13:25:02

Start Here

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Using the Terminal

Time of First Successful Submission: 2026-05-02 20:36:30

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-02 20:39:02

Using the GUI Desktop

Time of First Successful Submission: 2026-05-02 20:40:47

Pasting into the Desktop

Time of First Successful Submission: 2026-05-02 20:42:15

Restarting Challenges

Time of First Successful Submission: 2026-05-02 20:47:03

Challenge Programs

Time of First Successful Submission: 2026-05-02 20:50:37

The Flag File

Time of First Successful Submission: 2026-05-02 20:51:47

Using Privileged Mode

Time of First Successful Submission: 2026-05-02 20:54:52

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 20:56:31

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-02 20:57:38

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-05-02 22:11:52

Intro to Arguments

Time of First Successful Submission: 2026-05-02 22:12:38

Command History

Time of First Successful Submission: 2026-05-02 22:13:10

The Root

Time of First Successful Submission: 2026-05-02 22:16:00

Program and absolute paths

Time of First Successful Submission: 2026-05-02 22:16:46

Position thy self

Time of First Successful Submission: 2026-05-02 22:17:32

Position elsewhere

Time of First Successful Submission: 2026-05-02 22:18:18

implicit relative paths, from /

Time of First Successful Submission: 2026-05-02 22:19:22

explicit relative paths, from /

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implicit relative path

Time of First Successful Submission: 2026-05-02 22:21:38

home sweet home

Time of First Successful Submission: 2026-05-02 22:23:20

cat: not the pet, but the command!

Time of First Successful Submission: 2026-05-04 21:19:01

catting absolute paths

Time of First Successful Submission: 2026-05-04 21:19:53

more catting practice

Time of First Successful Submission: 2026-05-04 21:21:56

grepping for a needle in a haystack

Time of First Successful Submission: 2026-05-04 21:24:26

comparing files

Time of First Successful Submission: 2026-05-04 21:26:07

listing files

Time of First Successful Submission: 2026-05-04 21:28:39

touching files

Time of First Successful Submission: 2026-05-04 21:33:54

removing files

Time of First Successful Submission: 2026-05-04 21:34:28

moving files

Time of First Successful Submission: 2026-05-04 21:35:42

copying files

Time of First Successful Submission: 2026-05-04 21:36:22

hidden files

Time of First Successful Submission: 2026-05-04 21:36:56

An Epic Filesystem Quest

Time of First Successful Submission: 2026-05-04 21:42:36

making directories

Time of First Successful Submission: 2026-05-04 22:09:24

finding files

Time of First Successful Submission: 2026-05-04 22:08:34

linking files

Time of First Successful Submission: 2026-05-04 22:13:28

Learning From Documentation

Time of First Successful Submission: 2026-05-04 22:22:40

Learning Complex Usage

Time of First Successful Submission: 2026-05-05 11:56:27

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

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Multiple options for tab completion

Time of First Successful Submission: 2026-05-05 12:31:17

Tab completion on commands

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Redirecting output

Time of First Successful Submission: 2026-05-05 13:18:51

Redirecting more output

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Appending output

Time of First Successful Submission: 2026-05-05 13:22:10

Redirecting errors

Time of First Successful Submission: 2026-05-05 13:23:49

Redirecting input

Time of First Successful Submission: 2026-05-05 13:25:02

Grepping stored results

Time of First Successful Submission: 2026-05-05 13:26:41

Grepping live output

Time of First Successful Submission: 2026-05-05 13:27:47

Grepping errors

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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: 2026-05-05 13:44:49

Process substitution for input

Time of First Successful Submission: 2026-05-05 13:52:58

Writing to multiple programs

Time of First Successful Submission: 2026-05-05 14:00:54

Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-05 14:20:01

Named pipes

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Printing Variables

Time of First Successful Submission: 2026-05-05 15:24:43

Setting Variables

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Multi-word Variables

Time of First Successful Submission: 2026-05-05 15:26:25

Exporting Variables

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

Printing Exported Variables

Time of First Successful Submission: 2026-05-05 15:28:37

Storing Command Output

Time of First Successful Submission: 2026-05-05 15:33:11

Reading Input

Time of First Successful Submission: 2026-05-05 15:34:35

Reading Files

Time of First Successful Submission: 2026-05-05 15:37:52

Translating characters

Time of First Successful Submission: 2026-05-05 15:47:25

Deleting characters

Time of First Successful Submission: 2026-05-05 15:48:29

Deleting newlines

Time of First Successful Submission: 2026-05-05 15:49:35

Extracting the first lines with head

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Extracting specific sections of text

Time of First Successful Submission: 2026-05-05 15:54:09

Sorting data

Time of First Successful Submission: 2026-05-05 15:57:56

Listing Processes

Time of First Successful Submission: 2026-05-05 21:43:11

Killing Processes

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Interrupting Processes

Time of First Successful Submission: 2026-05-05 21:45:51

Killing Misbehaving Processes

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Suspending Processes

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Resuming Processes

Time of First Successful Submission: 2026-05-05 21:51:13

Backgrounding Processes

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Foregrounding Processes

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Starting Backgrounded Processes

Time of First Successful Submission: 2026-05-05 21:56:20

Process Exit Codes

Time of First Successful Submission: 2026-05-05 21:57:40

Becoming root with su

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Other users with su

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Cracking passwords

Time of First Successful Submission: 2026-05-05 22:07:46

Using sudo

Time of First Successful Submission: 2026-05-05 22:09:51

Changing File Ownership

Time of First Successful Submission: 2026-05-06 10:30:13

Groups and Files

Time of First Successful Submission: 2026-05-06 10:35:30

Fun With Groups Names

Time of First Successful Submission: 2026-05-06 10:36:20

Changing Permissions

Time of First Successful Submission: 2026-05-06 10:52:34

Executable Files

Time of First Successful Submission: 2026-05-06 10:53:46

Permission Tweaking Practice

Time of First Successful Submission: 2026-05-06 10:56:52

Permissions Setting Practice

Time of First Successful Submission: 2026-05-06 11:01:34

The SUID Bit

Time of First Successful Submission: 2026-05-06 11:03:15

Chaining with Semicolons

Time of First Successful Submission: 2026-05-06 11:45:56

Building on Success

Time of First Successful Submission: 2026-05-06 11:47:35

Handling Failure

Time of First Successful Submission: 2026-05-06 11:48:28

Your First Shell Script

Time of First Successful Submission: 2026-05-06 11:50:06

Redirecting Script Output

Time of First Successful Submission: 2026-05-06 11:59:15

Executable Shell Scripts

Time of First Successful Submission: 2026-05-06 12:00:13

Understanding Shebangs

Time of First Successful Submission: 2026-05-06 12:02:10

Scripting with Arguments

Time of First Successful Submission: 2026-05-06 12:05:46

Scripting with Conditionals

Time of First Successful Submission: 2026-05-06 12:07:19

Scripting with Default Cases

Time of First Successful Submission: 2026-05-06 12:08:32

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-05-06 12:10:09

Reading Shell Scripts

Time of First Successful Submission: 2026-05-06 12:12:10

Launching Screen

Time of First Successful Submission: 2026-05-06 12:14:12

Detaching and Attaching

Time of First Successful Submission: 2026-05-06 12:15:46

Finding Sessions

Time of First Successful Submission: 2026-05-06 12:17:04

Switching Windows

Time of First Successful Submission: 2026-05-06 12:18:13

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-05-06 12:19:23

Switching Windows (tmux)

Time of First Successful Submission: 2026-05-06 12:37:19

The PATH Variable

Time of First Successful Submission: 2026-05-06 13:34:07

Setting PATH

Time of First Successful Submission: 2026-05-06 13:35:54

Finding Commands

Time of First Successful Submission: 2026-05-06 13:36:59

Adding Commands

Time of First Successful Submission: 2026-05-06 13:39:12

Hijacking Commands

Time of First Successful Submission: 2026-05-06 13:40:34

Bashrc Backdoor

Time of First Successful Submission: 2026-05-06 13:45:05

Sniffing Input

Time of First Successful Submission: 2026-05-06 13:51:28

Overshared Directories

Time of First Successful Submission: 2026-05-06 13:55:40

Tricky Linking

Time of First Successful Submission: 2026-05-06 14:03:10

Sniffing Process Arguments

Time of First Successful Submission: 2026-05-06 14:04:21

Snooping on Configurations

Time of First Successful Submission: 2026-05-06 14:06:19

The Fork Bomb

Time of First Successful Submission: 2026-05-06 14:52:17

Disk-Space Doomsday

Time of First Successful Submission: 2026-05-06 14:55:26

rm -rf /

Time of First Successful Submission: 2026-05-06 15:01:48

Life after rm -rf /

Time of First Successful Submission: 2026-05-06 15:04:30

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-05-06 15:06:19

Computing 101

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Your First Register

Time of First Successful Submission: 2026-05-09 19:33:29

Your First Syscall

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Exit Codes

Time of First Successful Submission: 2026-05-09 19:36:31

Building Executables

Time of First Successful Submission: 2026-05-09 19:40:55

Moving Between Registers

Time of First Successful Submission: 2026-05-09 19:48:43

Loading From Memory

Time of First Successful Submission: 2026-05-09 20:27:05

More Loading Practice

Time of First Successful Submission: 2026-05-09 20:27:51

Dereferencing Pointers

Time of First Successful Submission: 2026-05-09 20:31:13

Dereferencing Yourself

Time of First Successful Submission: 2026-05-09 20:32:14

Dereferencing with Offsets

Time of First Successful Submission: 2026-05-09 20:34:26

Stored Addresses

Time of First Successful Submission: 2026-05-09 20:36:52

Double Dereference

Time of First Successful Submission: 2026-05-09 20:38:37

The Stack

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Stack Offsets

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Program Arguments on the Stack

Time of First Successful Submission: 2026-05-09 21:00:45

Popping From the Stack

Time of First Successful Submission: 2026-05-09 21:02:56

Disassembling Programs

Time of First Successful Submission: 2026-05-09 22:13:17

Tracing Syscalls

Time of First Successful Submission: 2026-05-09 22:16:36

Starting GDB

Time of First Successful Submission: 2026-05-09 22:17:53

Quitting GDB

Time of First Successful Submission: 2026-05-09 22:19:01

Starting Programs in GDB

Time of First Successful Submission: 2026-05-09 22:22:59

Disassembling in GDB

Time of First Successful Submission: 2026-05-09 22:23:32

Stepping Through Instructions

Time of First Successful Submission: 2026-05-09 22:24:46

Reading Register Values

Time of First Successful Submission: 2026-05-09 22:26:52

Popping Stack Values

Time of First Successful Submission: 2026-05-09 22:27:54

Examining Memory

Time of First Successful Submission: 2026-05-09 22:30:22

Examining Stack Pointers

Time of First Successful Submission: 2026-05-09 22:33:27

Cooperative Debugging

Time of First Successful Submission: 2026-05-09 22:38:01

Writing Output

Time of First Successful Submission: 2026-05-09 23:05:06

Chaining Syscalls

Time of First Successful Submission: 2026-05-09 23:06:19

Writing Strings

Time of First Successful Submission: 2026-05-09 23:07:00

Reading Data

Time of First Successful Submission: 2026-05-09 23:12:23

Opening Files

Time of First Successful Submission: 2026-05-09 23:17:03

Hardcoding the Filename

Time of First Successful Submission: 2026-05-09 23:23:34

Comparing Values

Time of First Successful Submission: 2026-05-12 13:20:36

Comparing Characters

Time of First Successful Submission: 2026-05-12 13:22:57

Conditional Control Flow

Time of First Successful Submission: 2026-05-12 13:26:17

Comparing Strings

Time of First Successful Submission: 2026-05-12 13:28:12

Reverse the Password

Time of First Successful Submission: 2026-05-12 13:31:56

Conditionals Without Conditionals

Time of First Successful Submission: 2026-05-12 13:50:11

Looping

Time of First Successful Submission: 2026-05-12 13:54:52

Reverse the Calculation

Time of First Successful Submission: 2026-05-12 15:06:03

Reverse the Reverse

Time of First Successful Submission: 2026-05-12 15:25:30

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-05-12 15:27:15

Loops on Data

Time of First Successful Submission: 2026-05-12 15:31:33

set-register

Time of First Successful Submission: 2026-05-12 15:51:46

set-multiple-registers

Time of First Successful Submission: 2026-05-12 15:52:39

add-to-register

Time of First Successful Submission: 2026-05-12 15:53:58

linear-equation-registers

Time of First Successful Submission: 2026-05-12 15:55:47

integer-division

Time of First Successful Submission: 2026-05-12 15:58:19

modulo-operation

Time of First Successful Submission: 2026-05-12 15:59:53

set-upper-byte

Time of First Successful Submission: 2026-05-12 16:01:19

efficient-modulo

Time of First Successful Submission: 2026-05-12 16:04:19

byte-extraction

Time of First Successful Submission: 2026-05-12 16:11:53

bitwise-and

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check-even

Time of First Successful Submission: 2026-05-12 16:31:27

memory-read

Time of First Successful Submission: 2026-05-12 16:37:49

memory-write

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memory-increment

Time of First Successful Submission: 2026-05-12 16:47:19

byte-access

Time of First Successful Submission: 2026-05-12 16:49:14

memory-size-access

Time of First Successful Submission: 2026-05-12 16:50:47

little-endian-write

Time of First Successful Submission: 2026-05-12 16:53:53

memory-sum

Time of First Successful Submission: 2026-05-12 16:56:27

stack-subtraction

Time of First Successful Submission: 2026-05-12 17:00:13

swap-stack-values

Time of First Successful Submission: 2026-05-12 17:02:07

average-stack-values

Time of First Successful Submission: 2026-05-12 17:06:58

absolute-jump

Time of First Successful Submission: 2026-05-12 17:12:45

relative-jump

Time of First Successful Submission: 2026-05-12 17:38:03

jump-trampoline

Time of First Successful Submission: 2026-05-12 17:39:09

conditional-jump

Time of First Successful Submission: 2026-05-12 17:52:07

indirect-jump

Time of First Successful Submission: 2026-05-12 18:17:10

average-loop

Time of First Successful Submission: 2026-05-14 08:33:15

count-non-zero

Time of First Successful Submission: 2026-05-14 08:45:49

string-lower

Time of First Successful Submission: 2026-05-14 10:12:50

most-common-byte

Time of First Successful Submission: 2026-05-14 14:03:42

Exit

Time of First Successful Submission: 2026-05-14 15:20:29

Socket

Time of First Successful Submission: 2026-05-14 15:41:24

Bind

Time of First Successful Submission: 2026-05-14 16:47:29

Listen

Time of First Successful Submission: 2026-05-14 17:22:34

Accept

Time of First Successful Submission: 2026-05-14 17:25:16

Static Response

Time of First Successful Submission: 2026-05-14 17:52:28

Dynamic Response

Time of First Successful Submission: 2026-05-14 19:52:25

Iterative GET Server

Time of First Successful Submission: 2026-05-14 21:28:53

Concurrent GET Server

Time of First Successful Submission: 2026-05-15 11:01:55

Concurrent POST Server

Time of First Successful Submission: 2026-05-15 15:04:13

Web Server

Time of First Successful Submission: 2026-05-15 14:58:00

Debugging Programs

Time of First Successful Submission: 2026-05-14 21:31:53

Inspecting Registers

Time of First Successful Submission: 2026-05-14 21:34:45

Examining Memory

Time of First Successful Submission: 2026-05-14 21:53:09

Setting Breakpoints

Time of First Successful Submission: 2026-05-15 22:43:19

GDB Scripting

Time of First Successful Submission: 2026-05-16 12:15:21

Modifying Data

Time of First Successful Submission: 2026-05-16 14:03:52

Modifying Execution

Time of First Successful Submission: 2026-05-16 14:09:00

Broken Functions

Time of First Successful Submission: 2026-05-17 11:56:51

Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-05-17 13:47:29

... and again!

Time of First Successful Submission: 2026-05-17 13:47:56

Newline Troubles

Time of First Successful Submission: 2026-05-17 13:49:23

Reasoning about files

Time of First Successful Submission: 2026-05-17 13:50:45

Specifying Filenames

Time of First Successful Submission: 2026-05-17 13:52:00

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-17 14:07:28

More Hex

Time of First Successful Submission: 2026-05-17 14:09:59

Decoding Hex

Time of First Successful Submission: 2026-05-17 14:14:30

Decoding Practice

Time of First Successful Submission: 2026-05-17 14:19:37

Encoding Practice

Time of First Successful Submission: 2026-05-17 14:35:44

Hex-encoding ASCII

Time of First Successful Submission: 2026-05-18 11:29:45

Nested Encoding

Time of First Successful Submission: 2026-05-18 23:04:07

Hex-encoding UTF-8

Time of First Successful Submission: 2026-05-18 23:13:53

UTF Mixups

Time of First Successful Submission: 2026-05-18 23:18:06

Modifying Encoded Data

Time of First Successful Submission: 2026-05-18 23:23:10

Decoding Base64

Time of First Successful Submission: 2026-05-18 23:31:00

Encoding Base64

Time of First Successful Submission: 2026-05-18 23:36:39

Dealing with Obfuscation

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Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-19 00:11:13

DSU Cyber Camps

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Using the Terminal

Time of First Successful Submission: 2026-05-02 20:36:30

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-02 20:39:02

Using the GUI Desktop

Time of First Successful Submission: 2026-05-02 20:40:47

Pasting into the Desktop

Time of First Successful Submission: 2026-05-02 20:42:15

Connecting over SSH

Time of First Successful Submission: 2026-05-02 20:45:03

Restarting Challenges

Time of First Successful Submission: 2026-05-02 20:47:03

Challenge Programs

Time of First Successful Submission: 2026-05-02 20:50:37

The Flag File

Time of First Successful Submission: 2026-05-02 20:51:47

Using Privileged Mode

Time of First Successful Submission: 2026-05-02 20:54:52

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 20:56:31

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-02 20:57:38

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-05-02 20:36:30

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-02 20:39:02

Using the GUI Desktop

Time of First Successful Submission: 2026-05-02 20:40:47

Pasting into the Desktop

Time of First Successful Submission: 2026-05-02 20:42:15

Connecting over SSH

Time of First Successful Submission: 2026-05-02 20:45:03

Restarting Challenges

Time of First Successful Submission: 2026-05-02 20:47:03

Challenge Programs

Time of First Successful Submission: 2026-05-02 20:50:37

The Flag File

Time of First Successful Submission: 2026-05-02 20:51:47

Using Privileged Mode

Time of First Successful Submission: 2026-05-02 20:54:52

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 20:56:31

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-02 20:57:38