Program to scan dictionary for words with letters in a particular set?

From: Jim Witte (jswitte_at_bloomington.in.us)
Date: 05/27/04 

To: beginners@perl.org
Date: Thu, 27 May 2004 00:14:57 -0500

Given a file of words W such as 'cat dog at home ...' (or perhaps read
into an array, though that would be a very large array), and a set of
letters L (a string 'aoeuidhtns' - perhaps put into a array), how would
I write a program to extract all words in W whose letters are all in L?
  I'm thinking of a program to generate a string of words for a
typing-tutor program.

Jim Witte
jswitte@bloomington.in.us
Indiana University CS

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