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.
Expect: Reading i/p without waiting for [Enter]

Posted by shruthi_21 (shruthi_21), 2 May 2006
In Expect, how can we read a data entered by user without waiting for a Enter key from the keyboard

Posted by admin (Graham Ellis), 3 May 2006
It all depends on the buffering of your operating system .... the issue you have come across is that the operating system typically doesn't send text typed in from the shell to expect until a new line is enetered.   That's done to give you a chance to correct typing errors.

Say, for example, that you were asked to enter your age and you entered 7 backspace 6 2 [enter] - you're 62 but you typed a seven by mistake; you do NOT want expect to act on the 7 nor have to clean up, do you?

In exceptional circumstances, you may want to bypass the buffering .... how to do that depends on the operating system you're running, whether you're running through a windows system, etc - not something I can give you a generic answer to based on what you've told us, I'm afraid

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