learn_gnugrep_ripgrep VS ugrep-benchmarks

Visit https://github.com/learnbyexample/learn_gnugrep_ripgrep for markdown source, example files, exercise solutions, sample chapters and other details related to the book.

I use my ebooks for reference:

* GNU grep and ripgrep (https://learnbyexample.github.io/learn_gnugrep_ripgrep/)

* GNU sed (https://learnbyexample.github.io/learn_gnused/)

* GNU awk (https://learnbyexample.github.io/learn_gnuawk/)

* Ruby one-liners cookbook (https://learnbyexample.github.io/learn_ruby_oneliners/)

* Perl one-liners cookbook (https://learnbyexample.github.io/learn_perl_oneliners/)

* Command line text processing with GNU Coreutils (https://learnbyexample.github.io/cli_text_processing_coreuti...)

* Command line text processing with Rust tools (https://learnbyexample.github.io/cli_text_processing_rust/) — work-in-progress

* Computing from the Command Line (https://learnbyexample.github.io/cli-computing/) — work-in-progress

>The -I flag only considers text files. This radically speeds up recursive greps.

I use ripgrep when I need better speed. I've pretty much switched to ripgrep these days, but still use GNU grep when I'm answering questions on stackoverflow, reddit, etc.

>ABC flags

Good to also know about `--group-separator` and `--no-group-separator` when there are multiple non-contiguous matches. Helps to customize the separator or remove them altogether. Sadly, these options are still not explained in `man grep` on Ubunutu. You'll have to use `info grep` or the online manual to find them.

Options I use often that is not mentioned in the article:

* `-c` to count the number of matches

* `-F` for fixed string matching

* `-x` to match whole lines

* `-P` for PCRE (as mentioned in many comments here)

* `--color=auto` this is part of command name alias, so it is always used

I wrote a book as well on "GNU grep and ripgrep": https://github.com/learnbyexample/learn_gnugrep_ripgrep Free to read online.

GNU grep and ripgrep

I really like the fuzzy match feature. Useful for typos or off by 1-2 characters.

https://github.com/Genivia/ugrep#fuzzy

🔎🗃️ ripgrep or ugrep (search fast, use regex patterns or fuzzy search, pipe output to bash/zsh shell for further processing V coloring)

The updated performance benchmarks demonstrate that ugrep 4.0 is pretty fast on x64 and ARM64 machines. Even so, ugrep will continue to evolve to increase its search speeds and add new features in the future.