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I have a long document of commands. Using Notepad++ or regex, I want to delete all lines containing "help" including keyboard_help, etc.
How can this be done?
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This method is very powerful as you can match almost anything (such as words “beginning with”, or lines that have a specific “pattern”.) Open the text-based file using Notepad++. Press Ctrl + F to open the Find and Replace dialog. Click the Replace tab to select it.
Do you want to delete everything before the | and including the | character. You can try find: (. +\|) and leave replace empty.
This is also possible with Notepad++:
Check Bookmark line (if there is no Mark tab update to the current version).
Enter your search term and click Mark All
Now go to the menu Search → Bookmark → Remove Bookmarked lines
Done.
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Another way to do this in Notepad++ is all in the Find/Replace dialog and with regex:
Ctrl + h to bring up the find replace dialog.
In the Find what: text box include your regex: .*help.*\r?\n (where the \r is optional in case the file doesn't have Windows line endings).
Leave the Replace with: text box empty.
Make sure the Regular expression radio button in the Search Mode area is selected. Then click Replace All and voila! All lines containing your search term help have been removed.
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