NAME

       Rex::Helper::Rexfile::ParamLookup - A command to manage task parameters.

       A command to manage task parameters. Additionally it register the parameters as template
       values.

       This module also looks inside a CMDB (if present) for a valid key.

SYNOPSIS

        task "setup", sub {
          my $var = param_lookup "param_name", "default_value";
        };

LOOKUP

       First param_lookup checks the task parameters for a valid parameter. If none is found and
       if a CMDB is used, it will look inside the cmdb.

       If your module is named "Rex::NTP" than it will first look if the key
       "Rex::NTP::param_name" exists. If it doesn't exists it checks for the key "param_name".