move dir fundamentals to basics

basics/locating.md

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+# Whereis the Program
+
+Ask where the `angband` program is, along with all its configuration files:
+
+`whereis angband`
+
+Also `which` shows where a binary file (the program) is, 
+
+> which cmus
+
+`type` shows what kind of thing you're running, be it an alias, or binary program.
+
+> type cmus
+
+# Quick Search for Files
+
+You'll need to set up `locate` for this by installing `mlocate`.  `mlocate` needs a list of all files on the machine, so run:
+
+> sudo updatedb
+
+Then to find a file called 'my-cats.jpg', run:
+
+> locate cats
+