How to format string/date in bash?

I have string like "1-JUN-11"
and it needs to be converted to "01JUN11" and "1/6/2011"

Thanks

Hi,

Test next commands:

$ date --date=1-jun-11 +%d%b%y
01jun11
$ date --date=1-jun-11 +%e/%m/%Y | sed -e 's/^ //' -e 's/\/0\([1-9]\)\//\/\1\//'
1/6/2011

Regards,
Birei

Awesome!!!!