This is all working now.

======================= snippet =======================
telnet = Net::Telnet::new("Host" => "#{$host}",
                          "TIMEOUT" => 10,
                          "Prompt" => /[$%#>] \z/)
telnet.login("admin", "password") { |c| print c }

File.readlines("#{$file_arg}").each do |line|
  telnet.cmd(line.gsub("\"", "")) { |c| print c }
end

telnet.close

======================= snippet end =======================

What I'd like to do now is have the ability to do a nested loop where 
the script acts on multiple file.

I tried many things but the answer eludes me.  Here is one attempt:

======================= trial nested loop =======================
filenames = "#{$file_arg}"
filenames.each do |filename|
  File.readlines("filename").each do |line|
    telnet.cmd(line.gsub("\"", "")) { |c| print c }
  end
end
======================= end trial nested loop =======================

The output is:

Ruby Scripts/TelnetCmds.rb:55:in `<main>': undefined method `each' for 
"C:\\Scripts\\VLAN_ES7000.txt":String (NoMethodError)

Feeling stupid as this should be an easy thing to do.  But again, the 
answer is eluding me.

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