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Showing content from https://learnbyexample.github.io/learn_gnuawk/further-reading.html below:

Further Reading - CLI text processing with GNU awk

• man awk and info awk and online manual
• Information about various implementations of awk
  • awk FAQ — great resource, but last modified 23 May 2002
  • grymoire: awk tutorial — covers information about different awk versions as well
  • cheat sheet for awk/nawk/gawk
  • list of freely available awk implementations
• Q&A on stackoverflow/stackexchange are good source of learning material, good for practice exercises as well
  • awk Q&A on unix.stackexchange
  • awk Q&A on stackoverflow
• Learn Regular Expressions (has information on flavors other than POSIX too)
  • regular-expressions — tutorials and tools
  • rexegg — tutorials, tricks and more
  • stackoverflow: What does this regex mean?
  • online regex tester and debugger — not fully suitable for CLI tools, but most of ERE syntax works
• My ebooks on CLI text processing tools
• Related tools
  • GNU datamash
    • See my blog post for basic examples
  • bioawk
  • frawk — an efficient awk-like language, implemented in Rust
  • goawk — POSIX-compliant awk interpreter written in Go, with CSV support
  • hawk — similar to awk, but using Haskell as the text-processing language
  • miller — similar to awk/sed/cut/join/sort for name-indexed data such as CSV, TSV, and tabular JSON (see this news.ycombinator discussion for other tools like this)
• Miscellaneous
  • unix.stackexchange: When to use grep, sed, awk, perl, etc
  • awk-libs — lots of useful functions
  • awkaster — Pseudo-3D shooter written completely in awk
  • awk REPL — live editor (browser app)
• ASCII reference and locale usage
  • ASCII code table
  • wiki.archlinux: locale
  • shellhacks: Define Locale and Language Settings
• Examples for some of the topics not covered in this book
  • unix.stackexchange: rand/srand
  • unix.stackexchange: strftime
  • stackoverflow: arbitrary precision integer extension
  • stackoverflow: recognizing hexadecimal numbers
  • unix.stackexchange: sprintf and file closing
  • unix.stackexchange: user defined functions and array passing
  • unix.stackexchange: rename CSV files based on number of fields in header row

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