They probably think they invented sex too. ;-) Memorisation isn't the issue. Knowing the tools available and their options is. That comes with study. Unix comm

They probably think they invented sex too. ;-) Memorisation isn't the issue. Knowing the tools available and their options is. That comes with study. Unix command line is a boon for problem solving and experimentation, just go and read Jon Bentley's _Programming Pearls_. One can't Google for what one doesn't realise can be done.