its always beneficial to learn technology at a lower level. if you are running Windows, its good to learn Powershell. if you have a refrigerator, it is good to

its always beneficial to learn technology at a lower level. if you are running Windows, its good to learn Powershell. if you have a refrigerator, it is good to know how to change your water filter, clean your fan etc. the purpose of the article is simply stating that familiarizing yourself with posix shells is beneficial to a modern day programmer and I don't think anyone can argue with that.