How to select or remove required lines from a file using notepad++

How to select the lines only if the line contains the required string?
1. Open the file in Notepad++.
2. Select “Find..” under the Search tab.
3. Give the string which you are looking for.
4. Select the “Mark” tab.
5. Check the “Bookmark line” box.
6. Press “Mark All” button.
7. Press “Close”
8. Now you can observer that the string is been marked with different color.
9. Select the Search tab.
10. Go to “Bookmark”
11. Choose the options from the available options.
Ex: Cut Bookmarked Lines, Copy Bookmarked Lines or Remove Bookmarked Lines etc..

[sudherkumar]

Exactly what I need thanks for this tutorial.

[nicholasvoon]

thanks for this tutorial! really helpful

[txlec]

wow you are AMAZING, i thank you soooo much for this one technique that have just change my life all of sudden, thank you so much again and again friend, may god bless you :)

[ChrisLively]

Thank you for the video and your time. Do you know how to delete every other line in a plain ascii text file?

[jill]

thanks you thank you. You saved me hours of work.

[antoninchadima]

Thanks... Simple way to solve this type of need

[pedroamaral]

its possible to remove unmarked lines and stay spaces btwen the lines?

[AlizaKhan-tcgz]

nice tutorial
please tell me how remove lines in java script with notepad++
like these line //
// Set the default options
var settings = $data.settings = $.extend({
'auto': true, // Automatically upload a file when it's added to the queue