This brings only mess and another indirection layers to your system which is hardly an advantage in my opinion. It will take more time to setup, more space on d

This brings only mess and another indirection layers to your system which is hardly an advantage in my opinion. It will take more time to setup, more space on disk, it will be slower and harder use. And all the normal tools(like awk and others in the article) are easily instalable in all distros. I will rather spend time learning these tools directly instead of infinitely fiddling with docker.