Extract lines without deleting remainder

[simoninsing]

Struggling to find a way to extract lines from a file by reference to a pattern match, WITHOUT deleting the remaining lines. I want to send the extractions to different files. Extract lines and Remove lines seem to work by nuking what is left. For example, I have a file that has this contents
12345
123
333345
333345
65777
897777
934444
So I want an extraction function that first takes all lines beginning with "1" to "1.txt"
Then an extraction function will take all lines beginning with "3" to 3.txt
and so on.

[DataMystic Support]

Easy - use a Filters\Restrict\Restrict to lines matching pattern list.

And inside this, put a Filters\Special\Secondary output filter

The original text will flow on unchanged, with matching text pushed out to the new file.

[simoninsing]

Got it, thanks Simon