Delete some lines

[Roel Jongman]

I am editing a Gedcom-file with about 300.000 lines of text.
Some lines start with:
1 _UID followed with a variabel expression.

Sample : 1 _UID 2BBEAA2D9B2B45D29FDED50E6913ABC2E6DB

How can i delete all these lines?

[Alan Kilborn]

@Roel-Jongman

Find: (?-is)^1 _UID.*\R
Replace: nothing
Search mode: Regular expression

[Roel Jongman]

Thank you Allan,

I was aware of the find-and-replace option, but did not know how to select the whole line.
I worked just fine for me.