Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/ashish7802/awesome-api-skills/linuxnpx skills add ashish7802/awesome-api-skills --skill linuxgit clone --depth 1 https://github.com/ashish7802/awesome-api-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ashish7802/awesome-api-skills/linux)<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/linux"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/linux.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00637 |
| Opus 5 | $0.00000 | $0.00318 |
| Sonnet 5 | $0.00000 | $0.00127 |
| Haiku 4.5 | $0.00000 | $0.00064 |
Grade A, and why
linux scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Linux Skill
The free, open-source operating system that powers the internet.
Ecosystem Graph Preview
graph LR
linux["linux"]:::core
classDef core fill:#f9f,stroke:#333,stroke-width:4px;
linux -- "integrates with" --> docker
linux -- "works well with" --> nginx
Recommended Next Skills
- nginx (Score: 0.82) Why: Direct relationship, Both are Infrastructure, Shared ecosystem (devops), Similar network profile
- docker (Score: 0.81) Why: Direct relationship, Both are Infrastructure, Shared ecosystem (devops), Similar network profile
- kubernetes (Score: 0.43) Why: Both are Infrastructure, Shared ecosystem (devops), Can deploy to aws, Similar network profile
Quick Start
Linux is the foundation of modern cloud computing. Understanding the kernel, filesystem hierarchy, and shell commands is required for debugging production outages.
Production Patterns
systemd
For background services running directly on a VM (like an NGINX proxy or a Go binary), do not run them in a tmux session. Write a systemd service file to ensure the process starts on boot and automatically restarts on failure.
Architecture & Scaling
Everything is a file
In Linux, configuration, hardware devices (/dev/sda), and kernel parameters (/proc/sys) are represented as files. You can often read from or write to these files directly to monitor or alter system state.
Error Recovery
When a server runs out of disk space (No space left on device), but df -h shows space available, you have likely run out of inodes. Check df -i. This happens when you have millions of tiny files (like session files or log chunks).
Security Notes
Disable SSH password authentication (PasswordAuthentication no) in /etc/ssh/sshd_config. Exclusively use Ed25519 SSH keys. Use fail2ban to automatically block IPs that repeatedly fail authentication.
References
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 63 lines · 0 tokens per session scan A 0e3c0c4c8014
linux is a skill published in the GitHub repository ashish7802/awesome-api-skills (13 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 637 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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