I keep a notes file of commands I had to look up twice. At some point the file got long enough that I turned it into proper one-page cheatsheets — one topic per repo, nothing that I haven't personally run and verified.
The cheatsheets
FFmpeg — 28 commands: transcoding, CRF compression, audio extraction, the two-step GIF palette workflow, lossless cutting/joining, scaling, watermarks, RTMP streaming.
https://github.com/Ezra-Zhao/ffmpeg-cheatsheet
Git — 30 commands: daily workflow, the three reset modes explained plainly, rebase (plus the golden rule), stash, and a rescue kit built around reflog and bisect.
https://github.com/Ezra-Zhao/git-cheatsheet
Docker — 28 commands: images, container lifecycle, volumes and networks, Dockerfile essentials, Compose, cleanup, and a debugging checklist for containers that won't start.
https://github.com/Ezra-Zhao/docker-cheatsheet
curl — 29 commands, API-debugging oriented: auth headers, JSON payloads, timing output with -w, retries, cookies, proxies.
https://github.com/Ezra-Zhao/curl-cheatsheet
Regex — 30 patterns and techniques, with the engine differences (PCRE vs Python vs JavaScript) called out instead of hidden.
https://github.com/Ezra-Zhao/regex-cheatsheet
jq — 30 filters: select, map, group_by, aggregation, and curl | jq pipelines. Every filter was executed against real JSON before it went in.
https://github.com/Ezra-Zhao/jq-cheatsheet
Terminal superpowers — 14 modern tools that replace cd, ls, cat, grep and friends.
https://github.com/Ezra-Zhao/terminal-superpowers-cheatsheet
Adobe free alternatives — 16 free tools mapped to what they replace.
https://github.com/Ezra-Zhao/adobe-free-alternatives-cheatsheet
Desubscribe — 10 common subscriptions that add up to about $1,260 a year, each paired with a free self-hosted replacement.
https://github.com/Ezra-Zhao/desubscribe-cheatsheet
Why translate them?
Every repo ships the English cheatsheet plus READMEs in 中文, Español and Português. Spanish- and Portuguese-speaking developers are among the fastest-growing groups on GitHub, and I wanted the sheets to be readable for them from day one.
Corrections are genuinely welcome — open an issue or PR on any repo and I'll fix wrong commands fast.
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