Find a ( at begining of line

[jpg]

I want to delete all lines that begins with (B.O.

Thanks

[Bob Hansen]

Edit/Find/Mark alll the lines,
Find: ^\(B.O.

Edit/Delete/Bookmarked lines.

Use the following settings:
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[X] Regular expression
Replace All
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Configure | Preferences | Editor
[X] Use POSIX regular expression syntax
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[MudGuard]

Edit/Find/Mark alll the lines,
Find: ^\(B.O.

Dangerous - This also finds lines starting with (BLOB.
^\(B\.O\.
is better.

And I would use
^\(B\.O\..*\n
and replace with nothing (instead of Mark all, Delete bookmarked Lines)