Tl;dr or tldr stands for “too long; didn’t read.” While this internet acronym can criticize a piece of writing as overly long, it can sometimes be used in a constructive way. The tldr project is such an example.
The tldr project is a collection of community-maintained help pages for command-line tools that aims to be a simpler, more approachable complement to traditional pages.
Link to Article:
https://www.linuxlinks.com/excellent-utilities-tldr-simplified-community-driven-man-pages/