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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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• 
  h key
  • in mail
  • in vi
• 
  head(C)
• 
  headers on mail messages
• 
  help, mail
• 
  hidden files
• 
  home directory, ``Logging in'', ``Your home directory'', ``Changing directories''
• 
  HOME variable
• 
  hyphen (-)