limpa cache 15 dias

/system script
add name=limparcache policy=\
    ftp,reboot,read,write,policy,test,winbox,password,sniff source=\
    "/ip proxy clear-cache"
/system scheduler
add comment="LImar cache 15 dias" disabled=no interval=2w1d name="Automatico cache" on-event=\
    "/system script run limparcache" policy=\
    reboot,read,write,policy,test,password,sniff,sensitive start-time=startup