The man pages are readily available.
The bash man page is huge and hairy, but comprehensive, I've found it pretty valuable to be familiar with the major sections and the visual shape of the text in the man page so I can page through it quickly to locate the exact info I need. This is often faster than using a Internet search engine.
True, but I find the man pages not easy and quick to parse.
Use `/` and search for the things of interest (keywords, arguments, options, etc...). Use n/N to quickly jump forward/back.
However, I already have this in my muscle memory: find -name '' -type f(file)/d(directory)
Works in 90% of situations when searching for some file in terminal, ie: find / -name 'stuff*'
The rest of the time is spent figuring out exec/xargs. :)
And once you master that, swap xargs for GNU parallel. I bet your machine has a ton of cores, don't let then sit idly. ;)