substituting dashes in files

[olmos]

I have a group of files with the name as
such: John_Smith05-04-13.txt
Marge_Doe-Johnson05-04-13.txt
and need to rename them to remove the dash only after any number, so that it will be
like Marge_Doe-Johnson050413.txt

How can I do that ?
sed command ....

thanks,
olmos

 

[vgersh99]

echo 'Marge_Doe-Johnson05-04-13.txt' | sed 's/\([0-9]\)-/\1/g'

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+