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