download, run and delete file

Hello

I try the following:
1. Check if a file is present
2. if not, download some files to an directory in /tmp and run one
3. remove the files and the directoy from /tmp

1 and 2 are easy, here is my definition:

class netcool
{

        exec { "/bin/bash /tmp/netcool/silentinstall.sh":
                cwd => "/tmp/netcool",
                path => "/usr/bin:/usr/sbin:/bin:/sbin",
                creates => "/opt/netcool/ssm/bin/init.nco_m_ssmagent",
                require =>  File["/tmp/netcool"]
        }
        file { "/tmp/netcool":
                source => "puppet://10.32.29.29/dist/os/linux/netcool",
                backup => false,
                mode => 644,
                owner => root,
                group => root,
                recurse => true
        }
}


that works so far. But if i (manually) delete /tmp/netcool, the next 
time i run puppet, it will downloaded again. Is there a
Way to get rid of these Files?

Thanks

Jan Hebler

PS. Sorry for my bad english