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(find.info)Filesystems

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Filesystems
===========

   A "filesystem" is a section of a disk, either on the local host or
mounted from a remote host over a network.  Searching network
filesystems can be slow, so it is common to make `find' avoid them.

   There are two ways to avoid searching certain filesystems.  One way
is to tell `find' to only search one filesystem:

 - Option: -xdev
 - Option: -mount
     Don't descend directories on other filesystems.  These options are
     synonyms.

   The other way is to check the type of filesystem each file is on, and
not descend directories that are on undesirable filesystem types:

 - Test: -fstype type
     True if the file is on a filesystem of type TYPE.  The valid
     filesystem types vary among different versions of Unix; an
     incomplete list of filesystem types that are accepted on some
     version of Unix or another is:
          ufs 4.2 4.3 nfs tmp mfs S51K S52K
     You can use `-printf' with the `%F' directive to see the types of
     your filesystems.  Note: Print File Information.  `-fstype' is
     usually used with `-prune' to avoid searching remote filesystems
     (Note: Directories).