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 Howto restrict su command to superuser only

su is run a shell with substitute user and group IDs. su is used to become another user during a login session. Invoked without a username, su defaults to becoming the super user. The optional argument - may be used to provide an environment similar to what the user would expect had the user logged in directly. Full Story

 (Submitted by dave Wed Aug 29, 2007 )

  


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