Read a text file line by line deleting certain rows

I have a txt file with an unknown number of lines, i need to run through it. I need to go through it and delete each blank line or line with a string and then store the remaining lines (with numbers) in a matrix Does anyone know how to do this?

Answer 1

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/284162-skip-empty-line-and-alphabet#answer_222097