PDF · 52 command chapters · Printable
The whole site.
One beautiful PDF.
Everything on shell.trainer — every command chapter, the concept guides, the full cheat sheet — as a polished, searchable, printable PDF. Read it offline, on your tablet, or on paper next to your keyboard.
- 52 command chapters — syntax, options tables, real examples, FAQs
- The two guides — permissions and pipes, the concepts behind the commands
- The complete cheat sheet — as printable quick-reference pages
- Free updates — every new chapter added to the site, delivered to you
The book is finished and in final review. Send a blank email and you'll hear from us once — the day it goes on sale, with an early-reader discount. No list, no newsletter, no sharing your address.
When is it out?
Very soon. The manuscript is complete — 158 typeset pages, 52 command chapters, diagrams and all — and it's going through a final technical review before it goes on sale. Selling a reference book that hasn't been checked line by line would be the wrong way round, so it waits until it's right. Leave your email above and you'll be told once, on launch day.
Why pay when the site is free?
The site stays free, always. The PDF is for a different moment: when you're offline, when you want the whole reference searchable in one document, when you learn better on paper, or when you simply want to support the project so it keeps growing. Buyers fund every new chapter.
What's inside
ls · cd · pwd · mkdir · touch · rm · cp · mv · cat · grep · find · chmod · echo · head & tail · tar · ssh · curl · wget · ps · kill · df & du · ln · sed · awk · cut · xargs · chown · history · ping · ip · ss · dig · rsync · scp · top & htop · free · systemctl · journalctl · sudo & su · apt · crontab · tee · tr · uniq · diff · less · gzip & zip · env & export · alias · jobs, & and nohup · sha256sum & md5sum · which & type — plus the permissions and pipes & redirection guides and the full cheat sheet.