learnbyexample

I posted a coding challenge in the second issue of learnbyexample weekly.

Want to remove metadata (DateTime, Model, Orientation, ShutterSpeedValue, etc) from your images?

You'd probably know about the startswith() and endswith() string methods. >>> sentence = 'This is a sample string' >>> sentence.startswith('This') True >>> sentence.startswith('is') False >>> sentence.endswith('ing') True >>> sentence.endswith('ly') Fal…

Hello!

Hello!

Hello!

I'm building a tool called rcut that allows you to use cut like syntax with features like regexp based delimiters.

So, I was editing a markdown file in Vim and I wanted to convert some lines to links.

This SO question was interesting and had various approaches to solve it.

Poster created using Canva This post covers Basic Regular Expressions (BRE) and Extended Regular Expressions (ERE) syntax supported by GNU grep, sed and awk.

While answering this SO question, I ran into a debug misery.

One of the feedback I got for my Perl one-liners ebook was to showcase examples where Perl shines compared to other text processing tools.

TL;DR: Small victories are more precious when you have nothing.

This post shows how you can use the ripgrep, perl and sd commands to perform multiline fixed string search and replace operations from the command line.

This stackoverflow Q&A got me thinking about various ways to construct a solution in GNU sed if lookarounds are needed.

ripgrep (command name rg) is a grep tool, but supports search and replace as well. rg is far from a like-for-like alternate for sed, but it has nifty features like multiline replacement, fixed string matching, PCRE2 support, etc.

Poster created using Canva Next step🔗 Programmers often wonder what to do after learning the basics.

Above diagram created using Regulex This blog post gives an overview of regular expression syntax and features supported by JavaScript.

Photo Credit: Tranmautritam on Pexels I've always wanted to create nice looking, useful GUI applications over the years.

The above image was generated using matplotlib courtesy code provided by Doing Math with Python book.

The surprise🔗 So, a pleasant surprise awaited me last Sunday.