How to escape plus sign on mac os x (BSD) sed?

Question

I\'m trying to find and replace one or more occurrences of a character using sed on a mac, sed from the BSD General Commands.

I try:

echo \"foobar\"          


        

Answer 1

Sed is sad for regexes. You could either try the -E, which might work with BSD, or you could try this one instead:

sed -e "s/o\{1,\}/"

Perhaps there are too many sed's out there to have a usable tool on any system.