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creating variables on the fly

Posted by soop (soop), 19 March 2008
I can't find anything unique enough to specify as an end of file for a running config, and the promts for the routers I'm using are all different.  What I'd like to do is grab the hostname from the running config with
"show run | i hostname" (which actually gives 2 matches) and then specify what follows hostname as $prompt.

Is this possible?  What is the comand for this?

Posted by admin (Graham Ellis), 20 March 2008
If you have your hostname in a variable called hostname you can use that as a part of our expect string:

expect "$hostname $prompt" ...

Posted by soop (soop), 26 March 2008
I know that, but I want to define what $hostname is automatically based on what expect outputs

Posted by admin (Graham Ellis), 26 March 2008
Yes ... you expect a line that contains the hostname, use a regular expression to extract it from expect_out(string) then expect in the way I described.

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