You have new mail in /var/spool/mail/root

cnhnln

在命令行下经常出现You have new mail in /var/spool/mail/root,而且这个文件在不断变大.如何才能不出现这个提示,如何才能阻止这个文件的增长?

clfls

cp /dev/null /var/spool/mail/root
ln -sf /dev/null /var/spool/mail/root