Training, Open Source computer languages
PerlPHPPythonMySQLApache / TomcatTclRubyJavaC and C++LinuxCSS 
Search for:
Home Accessibility Courses Diary The Mouth Forum Resources Site Map About Us Contact
For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
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.

This page is a thread posted to the opentalk forum at and archived here for reference. To jump to the archive index please follow this link.

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2022: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 793803 • EMAIL: • WEB: • SKYPE: wellho