Some articles collected online have a lot of blank lines. It would be very troublesome to delete them one by one. Is there a simple way to solve it? Just use UltraEdit!
First use UltraEdit to open the file and select the Replace command from the Search menu. In the Replace dialog box, select the Regular Expression check box and enter: %[ ^t]++^p in the search. Note that there is a space before ^t. The character meaning of this expression corresponds to that of EditPlus.
Then, click the Start button to replace and delete the empty lines. In this way, you can quickly and easily delete empty lines in the document! Keep it simple!