how to convert lower case to uppercase in a word in a line ?

[Bob Johnson]

On 9/16/05, Yavuz Maslak <maslak at ihlas.net.tr> wrote:
> Hello
> 
> There is a word that consists lowercases. 
> How to change all of letters capital letters in stead of lowercase ?
> is there any script about that ?

No one's suggested dd yet:

dd if=filename.txt conv=ucase of=newfilename.txt

- Bob