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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 :
Thu_Feb_20_17_29_09_results.log

Posted by admin (Graham Ellis), 21 February 2003
Try:

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

Explanation:

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.



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