How to delete empty lines

abc#
abc#this is a test
abc#this is a test to delete
abc#
xyz#
xyz#this is a test two
xyz#

In the above example '#' is common. How to do delete the emply lines. In specific to observe the output as:

abc#this is a test
abc#this is a test to delete
xyz#this is a test two
.
.
.
.

awk -F# '$(NF)>1' file

Regards

Cool It works.
Thanks Frank.

Or with grep:

grep '#.' < file

Regards

one more

grep -v "#$" filename

Thanks Folks. Will try all the options.