use File::Find;

File::Find::find({wanted => \&wanted}, '/');
exit;

sub wanted {
    my ($dev,$ino,$mode,$nlink,$uid,$gid);

    (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
    !($File::Find::prune |= ($dev != $File::Find::topdev))
    && print("$name\n");
}
[download]

($File::Find::topdev) = lstat("/");
[download]

Thanks. That seems to help with one exception so far. Using that method, it makes /dev look like a mounted file system which it is not. Is there some special meaning to $dev for certain directories like /dev?

Actually, /dev is a mounted file system -- see what the mount command reports.

It is not a remote file system like NFS, but then Linux doesn't differentiate "remote" file systems from other kinds of file systems (like /proc or EXT2 or NTFS or FTPFS).

The value of the device field identifies the handler (file system driver) that the OS uses to implement the file system object. If you only interested in NFS files, you could find out what its device id is and just check for that particular value.

/dev and /proc are both mounted file systems. They are just special, because they are not disk based.

Look at the output of mount. It should list both /dev and /proc.

grep
One dead unjugged rabbit fish later...

You can check /etc/mtab to see what is mounted at which mountpoint.

Create a list (or something else) with all mountpoints and you can check against that list.