Hello!
I just published my ebook titled "Command line text processing with GNU Coreutils". You might be already aware of popular coreutils commands like head, tail, tr, sort, etc. This book will teach you more than twenty of such specialized text processing tools provided by the GNU coreutils package.
Hello!
You never know where a conversation between indie authors will lead to. A tweet about Leanpub Python book sales brought up giveaways that we indie authors tend to do. Long story short, the four of us ended up deciding to create The Indie Python Extravaganza bundle.
And guess what?! You can use this pytober coupon link to get the bundle for FREE (the offer is valid till 31-Oct-2021).
Hello!
I just published my ebook titled "Practice Python Projects". This book presents five beginner to intermediate level projects inspired by real world use cases:
I'm building a tool called rcut that allows you to use cut like syntax with features like regexp based delimiters. The solution uses awk inside a bash script.
Latest feature creep is fixed string field splitting. I thought it would be a simple enough solution to add.
I was wrong.
This post covers Basic Regular Expressions (BRE) and Extended Regular Expressions (ERE) syntax supported by GNU grep, sed and awk. You'll also learn the differences between these tools — for example, awk doesn't support backreferences within regexp definition (i.e. the search portion).