Converting to Uppercase

I want to convert string into uppercase string. How can i do that ? Ex: Enter the user name:
read name
show=upper(name)
echo $show --- This output should be the uppercase output.

Thanks

Following may help u :

echo "hello" | tr "[a-z]" "[A-Z]"

an alternative using 'awk'

echo "hello" | awk '{ print toupper($1) }'

Using ksh...

read name
typeset -u show=$name
echo $show