Delete empty lines using sed?

Question

I am trying to delete empty lines using sed: sed '/^$/d' but I have no luck with it. For example, I have these lines: xxxxxx yyyyyy zzzzzz and I want it to be like: xxxxxx yyyyyy zzzzzz What should be the code for this?

Answer 1

Try this to remove empty lines from a file using sed, you can use the following command creating a new file

sed '/^$/d' filename