Delete all lines containing specified text

[zzappster]

YAFR:

I'd like to see the ability to delete all lines containing specified text or all lines not containing specified text. The lines can be found but there existing no easy way (that I know of) to be able to delete the lines.

Some editors diaplay/hide lines targeted by a search and then allow the deletion of displayable/non-displayable lines.

[webmasta]

Find /mark all
Edit /Delete /Bookmarked lines

To delete unmarked lines after you've bookmarked
Search /Invert all bookmarks
Edit /Delete /Bookmarked lines