Hello! 👋

I'm Sundeep Agarwal, author of several programming ebooks 📚 and devourer of fantasy books 🧙

I write about Regular Expressions, Linux CLI one-liners, Scripting Languages and Vim. I also maintain several curated resource lists.

👉 You can buy PDF/EPUB versions of my books via Leanpub or Gumroad.

Blogs ✍️

💻 learnbyexample — my super duper awesome programming blog

📖 Escapist reviews — lists, reviews and other thoughts about fictional books (fantasy, sci-fi, etc)

Highlights ✨

• Books
  • Understanding Python re(gex)?
  • Linux Command Line Computing
  • CLI text processing with GNU awk
  • Vim Reference Guide
  • Understanding JavaScript RegExp
• Blog posts
  • Customizing pandoc to generate beautiful pdf and epub from markdown
  • I know Python basics, what next?
  • GNU BRE/ERE cheatsheet and differences between grep, sed and awk
  • Vim prank: alias vim='vim -y'
  • Python Regex: possessive quantifiers and atomic grouping
  • Python Regex Surprises
  • CLI computation with GNU datamash
  • Coloring matched portions with GNU grep, sed and awk
  • awk idioms explained
  • Everything you need to know about sed substitution
• Tools
  • command_help
  • regexp-cut
  • Python re(gex)? exercises
  • Python Exercises
  • Linux CLI Text Processing Exercises
  • Python re(gex)? playground
  • Grep exercises
  • Sed exercises
  • Awk exercises
  • Awk Tutorial