Lekiiii

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-05-14 18:46:34

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-05-14 18:56:05

Absolute Paths

Time of First Successful Submission: 2026-05-14 18:56:49

Changing position

Time of First Successful Submission: 2026-05-14 19:07:13

Changing to an Absolute Path

Time of First Successful Submission: 2026-05-14 19:11:44

Relative Paths

Time of First Successful Submission: 2026-05-15 11:36:29

Cat

Time of First Successful Submission: 2026-05-15 12:53:50

Ls

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Ls All

Time of First Successful Submission: 2026-05-15 13:26:03

Piping Echo

Time of First Successful Submission: 2026-05-22 12:45:19

Piping Stdout

Time of First Successful Submission: 2026-05-22 12:48:22

Piping Stdin

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


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-05-14 18:46:34

Intro to Arguments

Time of First Successful Submission: 2026-05-14 18:48:39

Command History

Time of First Successful Submission: 2026-05-14 18:54:45

The Root

Time of First Successful Submission: 2026-05-14 18:56:05

Program and absolute paths

Time of First Successful Submission: 2026-05-14 18:56:49

Position thy self

Time of First Successful Submission: 2026-05-14 19:07:13

Position elsewhere

Time of First Successful Submission: 2026-05-14 19:11:44

implicit relative paths, from /

Time of First Successful Submission: 2026-05-15 11:36:29

explicit relative paths, from /

Time of First Successful Submission: 2026-05-15 11:52:24

implicit relative path

Time of First Successful Submission: 2026-05-15 11:55:44

home sweet home

Time of First Successful Submission: 2026-05-15 11:58:38

cat: not the pet, but the command!

Time of First Successful Submission: 2026-05-15 12:53:50

catting absolute paths

Time of First Successful Submission: 2026-05-15 12:54:18

more catting practice

Time of First Successful Submission: 2026-05-15 12:56:17

grepping for a needle in a haystack

Time of First Successful Submission: 2026-05-15 12:57:56

comparing files

Time of First Successful Submission: 2026-05-15 13:03:13

listing files

Time of First Successful Submission: 2026-05-15 13:11:42

touching files

Time of First Successful Submission: 2026-05-15 13:12:41

removing files

Time of First Successful Submission: 2026-05-15 13:16:04

moving files

Time of First Successful Submission: 2026-05-15 13:18:24

copying files

Time of First Successful Submission: 2026-05-15 13:19:22

hidden files

Time of First Successful Submission: 2026-05-15 13:26:03

An Epic Filesystem Quest

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

making directories

Time of First Successful Submission: 2026-05-15 14:15:31

linking files

Time of First Successful Submission: 2026-05-16 15:40:42

Learning From Documentation

Time of First Successful Submission: 2026-05-16 15:43:27

Learning Complex Usage

Time of First Successful Submission: 2026-05-16 15:48:31

Reading Manuals

Time of First Successful Submission: 2026-05-18 13:26:36

Searching Manuals

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Searching For Manuals

Time of First Successful Submission: 2026-05-18 15:49:02

Helpful Programs

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Help for Builtins

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Matching with *

Time of First Successful Submission: 2026-05-20 14:11:27

Matching with ?

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Matching with []

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Matching paths with []

Time of First Successful Submission: 2026-05-21 16:17:34

Multiple globs

Time of First Successful Submission: 2026-05-21 16:19:27

Mixing globs

Time of First Successful Submission: 2026-05-21 16:21:38

Exclusionary globbing

Time of First Successful Submission: 2026-05-21 16:25:40

Tab completion

Time of First Successful Submission: 2026-05-21 16:28:33

Multiple options for tab completion

Time of First Successful Submission: 2026-05-21 16:35:37

Tab completion on commands

Time of First Successful Submission: 2026-05-22 09:45:32

Redirecting output

Time of First Successful Submission: 2026-05-22 12:45:19

Redirecting more output

Time of First Successful Submission: 2026-05-22 12:48:22

Appending output

Time of First Successful Submission: 2026-05-22 12:51:51

Redirecting errors

Time of First Successful Submission: 2026-05-22 13:00:11

Redirecting input

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

Grepping stored results

Time of First Successful Submission: 2026-05-22 13:31:17

Grepping live output

Time of First Successful Submission: 2026-05-22 13:34:56

Grepping errors

Time of First Successful Submission: 2026-05-22 13:40:55

Filtering with grep -v

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Filtering with sed

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Duplicating piped data with tee

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Process substitution for input

Time of First Successful Submission: 2026-05-22 13:53:27

Writing to multiple programs

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Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-22 13:54:33

Printing Variables

Time of First Successful Submission: 2026-05-25 17:52:09

Setting Variables

Time of First Successful Submission: 2026-05-25 17:55:21

Multi-word Variables

Time of First Successful Submission: 2026-05-25 17:56:40

Exporting Variables

Time of First Successful Submission: 2026-05-25 18:01:04

Printing Exported Variables

Time of First Successful Submission: 2026-05-25 18:01:37

Storing Command Output

Time of First Successful Submission: 2026-05-25 18:02:20

Reading Files

Time of First Successful Submission: 2026-05-25 18:10:01

Translating characters

Time of First Successful Submission: 2026-05-29 16:31:46

Deleting characters

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Deleting newlines

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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

Time of First Successful Submission: 2026-05-31 15:51:21

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

Time of First Successful Submission: 2026-06-01 10:25:16

Other users with su

Time of First Successful Submission: 2026-06-01 10:25:58

Cracking passwords

Time of First Successful Submission: 2026-06-01 10:29:21

Using sudo

Time of First Successful Submission: 2026-06-01 10:36:14

Changing File Ownership

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

Groups and Files

Time of First Successful Submission: 2026-06-03 10:56:11

Fun With Groups Names

Time of First Successful Submission: 2026-06-03 10:58:52

Changing Permissions

Time of First Successful Submission: 2026-06-03 11:00:04

Executable Files

Time of First Successful Submission: 2026-06-04 07:27:26

Permission Tweaking Practice

Time of First Successful Submission: 2026-06-04 07:39:32

Permissions Setting Practice

Time of First Successful Submission: 2026-06-04 07:58:34

The SUID Bit

Time of First Successful Submission: 2026-06-04 07:59:22

Chaining with Semicolons

Time of First Successful Submission: 2026-06-08 14:37:34

Building on Success

Time of First Successful Submission: 2026-06-08 14:38:13

Handling Failure

Time of First Successful Submission: 2026-06-08 14:42:49

Your First Shell Script

Time of First Successful Submission: 2026-06-08 14:48:48

Redirecting Script Output

Time of First Successful Submission: 2026-06-08 14:54:19

Executable Shell Scripts

Time of First Successful Submission: 2026-06-08 15:13:54

Understanding Shebangs

Time of First Successful Submission: 2026-06-08 15:15:05

Scripting with Arguments

Time of First Successful Submission: 2026-06-08 15:20:17

Scripting with Conditionals

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Scripting with Default Cases

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Scripting with Multiple Conditions

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Launching Screen

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Detaching and Attaching

Time of First Successful Submission: 2026-06-08 16:20:44

Finding Sessions

Time of First Successful Submission: 2026-06-08 16:21:58

Switching Windows

Time of First Successful Submission: 2026-06-08 16:23:40

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-06-08 16:24:49

Switching Windows (tmux)

Time of First Successful Submission: 2026-06-08 16:25:31

The PATH Variable

Time of First Successful Submission: 2026-06-09 09:56:50

Setting PATH

Time of First Successful Submission: 2026-06-09 09:58:07

Finding Commands

Time of First Successful Submission: 2026-06-09 09:59:23

Adding Commands

Time of First Successful Submission: 2026-06-09 10:04:59

Hijacking Commands

Time of First Successful Submission: 2026-06-09 10:10:29

Bashrc Backdoor

Time of First Successful Submission: 2026-06-09 10:22:35

Sniffing Input

Time of First Successful Submission: 2026-06-09 10:35:03