I help programmers learn tricky topics like Regular Expressions and CLI tools with understandable examples.

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Products Membership Posts

CLI basics book update, Video demos, Bundle discounts and more

learnbyexample weekly: sample issue

Announcing Vim Reference Guide, free/discount offers and more

Improve your Python regex skills with 75 interactive exercises

December 1, 2021

Announcing learnbyexample weekly: free newsletter for programming resources and more, delivered every Friday

November 12, 2021

Announcing CLI text processing with Coreutils ebook (free for a week), free Python bundle and a giveaway contest

October 8, 2021

Announcing Practice Python Projects ebook, free for a week

Updated my books recently, use your account to get latest versions