How do you “debug” a regular expression with sed?

Question

I\'m trying to use a regexp using sed. I\'ve tested my regex with kiki, a gnome application to test regexpd, and it works in kiki.

date: 2010-10-29          


        

Answer 1

You have to use the -r flag for extended regex:

sed -r 's/author:\s[0-9]{11};//g'

or you have to escape the {} characters:

sed 's/author:\s[0-9]\{11\};//g'