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.

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Answer 1

From the shell, using ruby, this works assuming your input file is called FILENAME, and it should preserve all existing file formatting - it doesn't collapse the spacing as some other solutions might:

cat FILENAME | ruby -n -e 'puts $_.gsub(/^[a-z]|\s+[a-z]/) { |a| a.upcase }'