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.
what does prompt "(%|#|\\$|%]) $" stands for

Posted by shafa.fahad (FahaD), 18 September 2006


I understand that we use set prompt "(%|#|\\$|%]) $" to resolve the problem of expecting different prompts

But i would like to know how exactly setting %|#|\\.... to prompt works

If it is expecting any those special characters to recognize a prompt, will a output from any of the process which returns "$" affect the program?


I login to a remote machine. so after spawing ssh and entering password i will expect prompt. Once I get the prompt I execute a script which returns huge output which has "$" in it...

I would like to know, will the expect script recognize "$" as prompt and start sending the input? because i will be expecting prompt to send the next statement....

If It will not get affected, I am pleased to hear the reason behind the same.

Thanks in advance,

Posted by admin (Graham Ellis), 18 September 2006
It's looking for a string that ends with % # $ or %], followed in all cases with a single space.   It does seem unlikely that you would have another process write a string ending in such a way as part of its main flow, but it's not impossible and, yes, that could cause a problem.   If it can happen, you need to code for it.

Posted by shafa.fahad (FahaD), 18 September 2006
Thanks Graham

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