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+=head1 NAME
+
+find - traverse a file tree
+
+=head1 SYNOPSYS
+
+ use File::Find;
+ find(\&wanted, '/foo','/bar');
+ sub wanted { ... }
+
+=head1 DESCRIPTION
+
+The wanted() function does whatever verificationsyou want. $dir contains
+the current directory name, and $_ the current filename within that
+directory. $name contains C<"$dir/$_">. You are chdir()'d to $dir when
+the function is called. The function may set $prune to prune the tree.
+
+This library is primarily for the C<find2perl> tool, which when fed,
+
+ find2perl / -name .nfs\* -mtime +7 \
+ -exec rm -f {} \; -o -fstype nfs -prune
+
+produces something like:
+
+ sub wanted {
+ /^\.nfs.*$/ &&
+ (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
+ int(-M _) > 7 &&
+ unlink($_)
+ ||
+ ($nlink || (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_))) &&
+ $dev < 0 &&
+ ($prune = 1);
+ }
+
+Set the variable $dont_use_nlink if you're using AFS, since AFS cheats.
+
+Here's another interesting wanted function. It will find all symlinks
+that don't resolve:
+
+ sub wanted {
+ -l && !-e && print "bogus link: $name\n";
+ }
+