Keeping a Clean Notepad++: How to Delete Recurring Lines While Preserving Non-Repeating Ones
Notepad++ is a popular text editor used by programmers and non-programmers alike. One common task when working with large text files is removing recurring lines while preserving the unique ones. This article will guide you through the process of doing just that, using the built-in features of Notepad++.
Finding Recurring Lines
The first step in deleting recurring lines is to identify them. Notepad++ has a built-in feature called Mark that can help with this. To access it, go to the Search menu and select Mark.
-- Notepad++ Mark Dialog --
Search for: (.+)
Mark line: checked
Regular expression: checked
--In the Mark dialog, enter the regular expression (.+) in the Search for field. This will match any line that contains text. Make sure the Mark line option is checked, as well as the Regular expression option. Click the Mark All button to highlight all lines that match the regular expression.
Deleting Recurring Lines
Once you have marked the recurring lines, you can delete them. To do this, go to the Text menu and select Begin/End Select. This will allow you to select a block of text.
With the block of text selected, go to the Search menu and select Bookmark > Remove Bookmarked Lines. This will delete all lines that were marked in the previous step.
Preserving Non-Repeating Lines
To ensure that non-repeating lines are preserved, you can use the Block Comment feature in Notepad++. This will comment out the non-repeating lines, preventing them from being deleted.
To comment out a block of text, select it and go to the Language menu. Choose the language that you are using, and then select Block Comment. This will add comment markers at the beginning and end of the selected block.
- Use the Mark feature in Notepad++ to identify recurring lines
- Use the Begin/End Select feature to select the recurring lines
- Use the Remove Bookmarked Lines feature to delete the recurring lines
- Use the Block Comment feature to preserve non-repeating lines