I need to add some data in to yaml file, but I don't know how to do that using YAML modules, This is the example file content 

 --- 
exclude_domains: 
  - xxxx.com
  - yyy.net

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and I have an array with following contents 
my @domain_array = ('ppp.com', 'yyy.com', 'mmm.com');

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I want to add the array contents to yaml file after deleting the duplicate entries. If anyone can help me on this that would be great.

In reply to YAML and perl by Prajith

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