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Summary
There are more Linux commands than you'll ever be able to memorize. Most 
of us just memorize our favorite commands and variations of commands, and 
you'll develop your own menu of these commands as you learn and expand your 
knowledge. In this chapter, we covered many of the foundational commands that 
are, for the most part, essential. Commands such as 
grep
, 
cat
, 
cd
, 
ls
, and others were 
explored this time around. The next chapter is essentially a continuation of this one, 
but I wanted to split the foundational concepts into two chapters rather than one 
enormous one.
In the next chapter, we'll expand our foundational knowledge with a deeper look 
at file management, including editing files, input/output streams, symbolic links, 
and we'll even reveal the secret to life itself. Well, maybe not the latter, but the next 
chapter will still be great. See you there!
Further reading
•  Filesystem Hierarchy Standard: 
http://www.pathname.com/fhs/
•  UsingTheTerminal: 
https://help.ubuntu.com/community/UsingTheTerminal
•  Linux Commands for Beginners (Part 4) Navigating the Filesystem:  
https://learnlinux.link/lcb_filesystem

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