How to select only full cells in a column - Libreoffice / Openoffice Calc

Imagine having a column in a spread sheet with many lines in which not every line is full; but we want to select only the ones that are full. I'm doing this with a "Find" dialogue box and when wondering if there exists a simpler solution I only came across more complicated ones :/.

Here's is how I do it:

  1. Select the data set in the row with empty and not empty cells.
  2. Open Find & Replace dialogue box (Edit -> Find & Replace from the menu).
  3. In the "Search for" field write this regular expression: .*
  4. Click on "More options" and check "Regular expressions" and "Current selection only".
  5. Click on "Find All"
  6. Copy and Paste wherever wanted.

Hope this is clear enough.

Needless to say that with regular expressions it is possible to select various things:
- Cells containing letters only: [A-z]
- Cells containing numbers only: [0-9]

- ...

For various examples of regular expression see these examples. It's worth learning them.