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Awk in 20 Minutes (2015) (ferd.ca)

762 points by jessaustin · 2349 days ago · 126 comments on HN

Article summary

The article provides an introduction to the Awk programming language, a command-line tool useful for log parsing and data processing. It explains the code structure, data types, patterns, and actions in Awk, as well as its execution model. The article also includes examples of using Awk for tasks such as parsing Erlang crash dumps. Awk is particularly useful for quick one-off tasks and can be used in combination with other command-line tools.

Main themes

  • Awk programming
  • text processing
  • command-line tools
  • log parsing
  • data processing
  • scripting languages

What commenters say

  • Awk is a useful tool for text processing and can be learned quickly, making it a great introduction to programming. Some commenters prefer using Awk over other tools like Perl or Python for simple tasks. Others argue that while Awk is useful, it can become cumbersome for more complex tasks and that languages like Python are more suitable. The choice between Awk and other tools like cut or tr depends on the specific use case and personal preference. Awk's ability to handle whitespace and perform field separation makes it a better choice than cut in some situations. For more complex tasks, such as parsing CSV files with escaped or quoted commas, Python may be a better option due to its extensive libraries and handling of edge cases. Some users appreciate Awk's simplicity and ease of use, particularly when working with pipes and command-line tools.
  • themes": [