How can I capitalize the first letter of each word?

Question

I need a script in any language to capitalize the first letter of every word in a file.

Thanks for all the answers.

Stackoverflow rocks!

Answer 1

bash:

$ X=(hello world)
$ echo ${X[@]^}
Hello World

Answer 2

ruby:

irb> foo = ""; "foo bar".split.each { |x| foo += x.capitalize + " " }
=> ["foo", "bar"]

irb> foo
=> "Foo Bar "