Toggle duplicate lines

[Richard Bell-Irving]

I have a text file of about 100,000 email addresses and I know there are many exact duplicates. I can use the SORT function and delete them; BUT I would like to know how to toggle the duplicate lines so I can see how many there actually are.

Any ideas would be most welcome and Happy New Year to all

Richard

[Ed]

If you sort and delete duplicates it will tell you haw many it deleted. You can always undo with Ctrl-Z

[Richard Bell-Irving]

Right, but I want to be able to capture the actual line to see the e-mail address. That was why I thought by toggleing the duplicate lines, I could cut them in the edit mode?

Thanks anyhow

[Roy Beatty]

Hmm, you could meet that requirement by putting the data into a database. Any garden variety would do.

[Ed]

you could sort and save then sort-with delete-duplicates and save as a new name
then compare the files with ExamDiff Pro (excellent program, quick download and easy install) from

http://www.prestosoft.com/examdiff/examdiffpro.htm

That will show the differences