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Notepad++ Regular expression find and delete a line

Step 1

  • SearchFind → (goto Tab) Mark
  • Find what: ^Session.*$
  • Enable the checkbox Bookmark line
  • Enable the checkbox Regular expression (under Search Mode)
  • Click Mark All (this will find the regex and highlights all the lines and bookmark them)

Step 2

  • SearchBookmarkRemove Bookmarked Lines

If it supports standard regex...

find:
^.*#RedirectMatch Permanent.*$

replace:

Replace with nothing.


Provide the following in the search dialog:

Find What: ^$\r\n
Replace With: (Leave it empty)

Click Replace All


Combining the best from all the answers

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Using the "Replace all" functionality, you can delete a line directly by ending your pattern with:

  • If your file have linux (LF) line ending : $\n?
  • If your file have windows (CRLF) line ending : $(\r\n)?

For instance, in your case :

.*#RedirectMatch Permanent.*$\n?