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Emacs regex. This is specifically for emacs use!

Describes bash regex used in =~ operator, like: if [[ $str =~ _[a-z]+ ]]; then ...

Describes bash regex used in =~ operator, like: if [[ $str =~ _[a-z]+ ]]; then ...

Describes STANDARD regular expressions, that generally work in languages: AWK, Java, Python, Go, Javascript, also possibly GREP BUT NOT emacs or bash

Browsers summary 2025. Also discusses the new layout engine ladybird

Search for 'awk' and all awk tutorials come up. or append 'awk' to the URL

Just search for what you want (e.g. awk) and articles come up.

4000+ command-line tools and packages explained 30000+ commands with detailed explanation and examples

Rebash is a library for bash that provides solutions for most bash weaknesses, esp modularity! (non-global vars, exception handling, modular import, logging, error handling, doc generation, doc testing, argument parser, utility functions for arrays and more

The only one describing array manipulations as sets!

Calculate, integrate, convert, do matrix math, statistics, extract information from web pages etc

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