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CLI text processing with GNU Coreutils

24 points by asicsp 3y ago

asicsp 3y ago
Hello! I am pleased to announce a new version of my "CLI text processing with GNU Coreutils" ebook. This ebook will help you learn 20+ specialized text processing commands. Major changes in this version were adding 100+ exercises and updating features for 9.1 coreutils package. Links: * Web version: https://learnbyexample.github.io/cli_text_processing_coreutils/ https://learnbyexample.github.io/cli_text_processing_coreuti... * Markdown source, exercise solutions, etc: https://github.com/learnbyexample/cli_text_processing_coreutils https://github.com/learnbyexample/cli_text_processing_coreut... * Interactive TUI app: https://github.com/learnbyexample/TUI-apps/tree/main/CLI-Exercises https://github.com/learnbyexample/TUI-apps/tree/main/CLI-Exe... (includes some coreutils exercises) I would highly appreciate it if you'd let me know how you felt about this book. It could be anything from a simple thank you, pointing out a typo, mistakes in code snippets, which aspects of the book worked for you (or didn't!) and so on. Reader feedback is essential and especially so for self-published authors. Happy learning :)
- MrVandemar 3y ago
  I had a look at it and immediately learned about some utilities I didn't know existed. I'm going to have a browse through this in my leisure time. Thank you for your hard work!
  - asicsp 3y ago
    You're welcome and thanks for the nice feedback!
- bitwize 3y ago
  That TUI program reminds me: back in the day, on Xenix systems, there was a program (it may have been an optional install) called 'learn'. Learn gave you basic lessons in how to manage files with the Unix command line utilities: moving, copying, deleting, editing, etc. At the end of each lesson it would test you by dropping you into a fake shell with a fake file system and having you perform the appropriate commands. It would respond the way a real shell would, and if you screwed up the worst thing that would happen was having to repeat the lesson. I think that when it comes to complicated things like shells and programming languages, allowing the learner to play with the concepts involved is super important. So, thanks for reflecting that in the program.
deleted 3y ago
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alchemist1e9 3y ago
There is a use case for sort that might be worth mentioning. If someone needs to sort billions or trillion of lines of data, it can be done with coreutils sort. The trick is to use —-temporary-dir and potentially use ulimit to restrict the process memory. Might be worth mentioning under sort as it’s a neat trick.

24 points by asicsp 3y ago

Hello! I am pleased to announce a new version of my "CLI text processing with GNU Coreutils" ebook. This ebook will help you learn 20+ specialized text processing commands. Major changes in this version were adding 100+ exercises and updating features for 9.1 coreutils package. Links: * Web version: https://learnbyexample.github.io/cli_text_processing_coreutils/ https://learnbyexample.github.io/cli_text_processing_coreuti... * Markdown source, exercise solutions, etc: https://github.com/learnbyexample/cli_text_processing_coreutils https://github.com/learnbyexample/cli_text_processing_coreut... * Interactive TUI app: https://github.com/learnbyexample/TUI-apps/tree/main/CLI-Exercises https://github.com/learnbyexample/TUI-apps/tree/main/CLI-Exe... (includes some coreutils exercises) I would highly appreciate it if you'd let me know how you felt about this book. It could be anything from a simple thank you, pointing out a typo, mistakes in code snippets, which aspects of the book worked for you (or didn't!) and so on. Reader feedback is essential and especially so for self-published authors. Happy learning :)

MrVandemar 3y ago
I had a look at it and immediately learned about some utilities I didn't know existed. I'm going to have a browse through this in my leisure time. Thank you for your hard work!
- asicsp 3y ago
  You're welcome and thanks for the nice feedback!
bitwize 3y ago
That TUI program reminds me: back in the day, on Xenix systems, there was a program (it may have been an optional install) called 'learn'. Learn gave you basic lessons in how to manage files with the Unix command line utilities: moving, copying, deleting, editing, etc. At the end of each lesson it would test you by dropping you into a fake shell with a fake file system and having you perform the appropriate commands. It would respond the way a real shell would, and if you screwed up the worst thing that would happen was having to repeat the lesson. I think that when it comes to complicated things like shells and programming languages, allowing the learner to play with the concepts involved is super important. So, thanks for reflecting that in the program.

deleted 3y ago

[deleted]

alchemist1e9 3y ago

There is a use case for sort that might be worth mentioning. If someone needs to sort billions or trillion of lines of data, it can be done with coreutils sort. The trick is to use —-temporary-dir and potentially use ulimit to restrict the process memory. Might be worth mentioning under sort as it’s a neat trick.