find ./iso/ -type f -cmin '+11' -uid web -exec rm '{}' \;

##</code><code>##

find2perl ./iso/ -iname '*.xz' -user web -ctime 1 -exec rm '{}' \;

##</code><code>##

#! /usr/local/bin/perl -w
    eval 'exec /usr/local/bin/perl -S $0 ${1+"$@"}'
        if 0; #$running_under_some_shell

use strict;
use File::Find ();

# Set the variable $File::Find::dont_use_nlink if you're using AFS,
# since AFS cheats.

# for the convenience of &wanted calls, including -eval statements:
use vars qw/*name *dir *prune/;
*name   = *File::Find::name;
*dir    = *File::Find::dir;
*prune  = *File::Find::prune;

sub wanted;


my (%uid, %user);
while (my ($name, $pw, $uid) = getpwent) {
    $uid{$name} = $uid{$uid} = $uid;
}


# Traverse desired filesystems
File::Find::find({wanted => \&wanted}, './iso/');
exit;


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

    (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
    /^.*\.xz\z/si &&
    ($uid == $uid{'web'}) &&
    (int(-C _) == 1) &&
    (unlink($_) || warn "$name: $!\n");
}