[R] Creating Table from Boxplot

[Lorenzo Isella]

Dear All,
I know how to use the boxplot()  function to generate a boxplot, but I
would like to (automatically) extract 5 numbers (median and the 4
quantiles) for each column and possibly save them into a convenient format.
Can anyone point me to the right direction? I am sure there must be an
automatic way to extract these data which are implicitly used  by boxplot().
Many thanks

Lorenzo