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
This week, we're updating our course layouts and descriptions. Presentation and materials always gently change over time, but just occasionally there's a need to make a step change to clear out some of the old and roll in the new. That's now happening - but over a long and complex site it's not instant and you'll see sections of the site changing up to and including 19th September.

See also [here] for status update
regarding expect_out(buffer)

Posted by sharmila (sharmila), 15 November 2005
 when i try to read the expect_out(buffer) from a procedure, it says can't read,no such variable exists.I have even declared the expect_out(buffer) as global inside the procedure.But it says no such variable.

Posted by admin (Graham Ellis), 16 November 2005
You need to declare the whole of expect_out global rather than just one element.


proc pingit what {
   global expect_out
   spawn ping -c 1 $what
   expect \n
   expect \n
   puts -nonewline "$what: $expect_out(buffer)"
   return 1

log_user 0
pingit dandelion
pingit dolphin
puts done

And that runs as

$ expect expog 64 bytes from icmp_seq=0 ttl=50 time=174.669 ms
dolphin: 64 bytes from icmp_seq=0 ttl=64 time=1.032 ms

Posted by sharmila (sharmila), 18 November 2005
Worked for me...

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., 2014: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 899360 • EMAIL: • WEB: • SKYPE: wellho