Unix grep questions

[dba_admin]

I am writting a Unix script for my db admin. How do you remove empty lines?

For example, a file like this:
"abc fdafdsa

xyz
abcsyz"

I want to output the file to be:
"abc fdafdsa
xyz
abcsyz"

[slimdave]

as i recall is would be ...

grep -v '^$'

[kris109]

grep -v "^$" filename > newfilename

Newfilename is the new file without blank lines.

[dba_admin]

Thank you.