Terminal

Skill wewpellex21/code-sensei/skills/terminal

🥋 Teach yourself coding in real-time using your own projects with this free, open-source Claude Code plugin for active learning.

Install

npx -y skills add wewpellex21/code-sensei --skill terminal

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Command line, npm, git, and shell basics. Activated when Claude runs Bash commands. Demystifies the terminal for non-technical users.

SKILL.md

2.8 KB, 665 tokens by cl100k_base, as published. Nobody here has run it

Terminal & Command Line — CodeSensei Teaching Module

The Terminal

Analogy: The terminal is like texting your computer. Instead of clicking buttons, you type instructions and it responds. It's not scarier than that.
Key insight: Everything you can do by clicking in a graphical interface, you can do faster by typing in the terminal. Developers prefer typing because it's faster and scriptable.

Essential Commands

Teach these as they appear in the user's session:

Navigation

cd [folder] — "Change Directory" — walk into a folder
ls — "List" — see what's in the current folder
pwd — "Print Working Directory" — "where am I right now?"
Analogy: You're in a building. cd is walking to a room, ls is looking around, pwd is checking the room number on the door.

File Operations

mkdir [name] — "Make Directory" — create a new folder
touch [file] — create a new empty file
cp — copy, mv — move/rename, rm — delete
⚠️ Teach: rm is permanent. There's no trash can.

npm (Node Package Manager)

Analogy: An app store for code. Other developers built tools and shared them. npm install downloads those tools into your project.
npm install [package] — download and add a tool
npm run [script] — run a pre-defined task (like "start the server" or "run tests")
package.json — the shopping list of all tools your project uses
node_modules/ — the warehouse where downloaded tools live (never edit this!)

git (Version Control)

Analogy: A time machine for your code. Every "commit" is a save point you can go back to.
git add — stage changes (put items on the "to save" pile)
git commit — save a snapshot with a description
git push — upload your snapshots to the cloud (GitHub)
git pull — download the latest from the cloud
Key insight: Git exists because code breaks. It lets you undo mistakes by going back to when things worked.

Environment Variables

Analogy: Secret notes that your app can read but aren't written in the code itself. Like a password you whisper instead of writing on a whiteboard.
.env file — where secrets live (API keys, database passwords)
⚠️ Teach: NEVER commit .env files to git. That's like posting your passwords publicly.

Scary-Looking but Simple

| (pipe) — sends output from one command as input to another, like a conveyor belt
> — saves output to a file instead of showing it on screen
&& — "do this AND THEN do that" (run two commands in sequence)
sudo — "do this as administrator" (the master key)

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Gives 0 of the 12 instructions most learn study skills give in 665 tokens

Counted across 546 of the 573 authors here whose files we hold, read 2026-08-07

Calculate the zone of proximal development before teachingin 25 of 546, across 8 files
Produce self-contained HTML lessonsin 24 of 546, across 8 files
Record user preferences in a notes filein 23 of 546, across 5 files
Maintain a teaching workspace in the current directoryin 21 of 546, across 4 files
Find high-quality resources before writing lessonsin 19 of 546, across 5 files
Make lessons beautiful, short, and quickly completablein 19 of 546, across 3 files
Create reusable components for lessonsin 19 of 546, across 5 files
Create compressed reference documents for quick lookupin 19 of 546, across 3 files
Update the mission file and records upon mission changesin 16 of 546, across 2 files
Set min_dist to 0.0 for clustering preprocessingin 16 of 546, across 6 files
Populate the mission file before teachingin 15 of 546, across 1 file
Include interactive feedback loops in lessonsin 15 of 546, across 1 file

Said here and by no other author read

include plain-language explanation using an analogy
teach navigation commands as they appear
teach file operation commands as they appear
teach git commands as they appear
teach environment variable usage as it appears

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.