Running host IP

[Dennis, Richard]

Is there a variable or a simple way to get the ip of eth0 (or main
interface) into a cfengine variable?

Linux has issues when the hostname is put in the 127.0.0.1 line rather than
it's real interface's ip and hostname.  What I'm trying to do is comment out
existing wrong 127.0.0.1 lines, and create a proper one. 

--Rick

editfiles:
   { /etc/hosts
        BeginGroupIfNoSuchLine "127.0.0.1       localhost.localdomain
localhost"
                CommentLinesStarting   "127.0.0.1"
                InsertLine "127.0.0.1       localhost.localdomain localhost"
                InsertLine "$(some_variable)           $(host)"
        EndGroup
   }

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