I concur, but they need not stay unfamiliar with it.  The concept is easy:  When you type the name of a program and hit enter, I look it up in a list of directories to see the first one that contains a file with that name.  That list is $PATH.  Any programmer will have to deal with search paths and stuff at some point in their life, and probably very early on, when they&#x27;ll want to run their own scripts.