find operators

      Listed in order of decreasing precedence:

       ( expr )
              Force precedence.

       ! expr True if expr is false.

       -not expr
              Same as ! expr, but not POSIX compliant.

       expr1 expr2

              Two expressions in a row are taken to be joined with an  implied
              "and"; expr2 is not evaluated if expr1 is false.

       expr1 -a expr2
              Same as expr1 expr2.

       expr1 -and expr2

              Same as expr1 expr2, but not POSIX compliant.

       expr1 -o expr2
              Or; expr2 is not evaluated if expr1 is true.

       expr1 -or expr2

              Same as expr1 -o expr2, but not POSIX compliant.

       expr1 , expr2
              List;  both  expr1 and expr2 are always evaluated.  The value of
              expr1 is discarded; the value  of  the  list  is  the  value  of
              expr2.       The  comma operator can be useful for searching for
              several different types of thing, but traversing the  filesystem
              hierarchy  only  once.   The -fprintf action can be used to list
              the various matched items into several different output files.

"Instead of getting married again, I'm going to find a woman I don't like and just give her a house." - Lewis Grizzard

Related Linux Bash commands:

find - Search a folder hierarchy for filename(s) that meet a desired criteria.
grep - Search file(s) for lines that match a given pattern
xargs - Execute utility, passing constructed argument list(s)

Equivalent Windows XP command:

DIR /b /s - Display a list of files and (sub)folders