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.
exec date usage in expect

Posted by skumar003 (skumar003), 20 February 2003
I am using the following to log results of a test.

log_file -a -noappend [exec date]_results.log.

The  [exec date] option lists the logfile which look something like this.

Thu Feb 20 17:29:09 2003_results.log.  Is there a way to make the whole thing print as one without any spaces(  like an underscore between words )

Like :

Posted by admin (Graham Ellis), 21 February 2003

regsub -all " " [exec date] _ temp
log_file -a -noappend ${temp}_results.log.


Perform the date command on your computer and replace all matches of a white space with _ characters, storing the result in a variable "temp".  Then do your log_file with the temp variable.  The extra curly braces tell tcl where the variable name ends and the constant text begins, as _ would normally be part of a variable name.

Looking slightly wider, I would suggest that you generate your timestamp using clock format, since that won't start an extra process and it will also be portable if you move your application to a system with a different date command.

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