Apache-3 Inc. · Reference
promptengineering.sh
.sh = shell. One-page reference cards for the commands working professionals actually use.
Shell, Linux, git, ssh, tmux, AI CLI tools, docker, kubectl. Each cheatsheet printable, no fluff, organized by what you're trying to do, not by command name.
Browse 48 cheatsheets
Filter by category or search by name. Cheatsheets are 1-page reference cards. All free, all hand-written.
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Shell
Shell basics — the 20 commands that cover 90% of daily work
20 commands
Git
Git — the 18 commands that get you through 99% of git use
18 commands
Shell
Text manipulation — grep, awk, sed cheatsheet
15 commands
Remote
ssh + tmux — remote work without losing your session
14 commands
AI CLI
claude CLI — running Claude Code from the terminal
12 commands
Containers
Docker — the 15 commands you need for daily container work
15 commands
Containers
kubectl — the 14 commands that get you through 95% of kube work
14 commands
Shell
Finding files fast — find, fd, locate, ripgrep
12 commands
Data
JSON wrangling with jq
12 commands
Network
curl — HTTP from the terminal
12 commands
Text
Regex — the patterns you actually use
18 commands
Editors
Vim survival — when you must edit on a server
16 commands
Remote
tmux — split screens, sessions, never lose work
14 commands
Node
pnpm — the package manager that does not fight you
14 commands
AI CLI
AI prompting — the five patterns every professional needs
5 commands
AI Privacy
Working with AI on sensitive data — the redaction pattern
6 commands
macOS
Homebrew — package manager for macOS
12 commands
Network
SSH port forwarding — local, remote, dynamic
6 commands
Shell
File permissions — chmod, chown, octal modes
10 commands
System
Process management — ps, kill, lsof, htop
12 commands
Shell
rsync — the file-sync commands that cover daily work
14 commands
Shell
sed — find-and-replace and line edits that work in scripts
14 commands
Shell
awk — column processing without writing a script
14 commands
Shell
openssl — cert, key, and crypto operations
14 commands
Linux
systemd — manage Linux services
14 commands
Shell
Environment variables — the shell, .env, and gotchas
14 commands
AI prompts
AI code review — prompt templates that catch real bugs
12 commands
AI prompts
AI documentation prompts — turn code into docs in minutes
8 commands
Security
gpg — encrypt, decrypt, sign, verify
14 commands
Shell
tar + zip — create + extract archives
14 commands
IaC
Terraform — the daily commands + good-defaults patterns
14 commands
IaC
Ansible — playbook + ad-hoc command quickref
14 commands
AI prompts
AI agent prompts — patterns for tool-using LLMs
10 commands
AI prompts
AI data-analysis prompts — turn AI into a junior analyst
8 commands
Databases
PostgreSQL — the psql + SQL commands that come up daily
16 commands
Databases
Redis — the redis-cli commands that come up daily
18 commands
CI/CD
GitHub Actions — workflow patterns that come up daily
14 commands
Build
Makefile — the patterns that work for small projects
12 commands
Build
npm / pnpm / yarn — comparison + when to use which
16 commands
Cloud
Vercel CLI — the commands that come up in daily work
18 commands
AI Prompting
Regex debugging prompts — let AI explain your regex back to you
14 commands
Shell + Data
jq — JSON processing on the command line
22 commands
Cloud + DevOps
kubectl — the 30 commands that cover 95% of kubernetes daily ops
30 commands
Observability
Prometheus + PromQL — observability metrics that matter
18 commands
Observability
Grafana — dashboards, alerts, and panel hygiene
16 commands
Observability
Datadog — APM, logs, and metrics in one stack
14 commands
Observability
OpenTelemetry — the vendor-neutral observability standard
16 commands
Reliability
SLOs and error budgets — the spec for reliability
12 commands