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serj372019-10-07 08:24:12
Regular Expressions
serj37, 2019-10-07 08:24:12

How to remove a regular string without a dot?

You need to delete lines without a dot:
Yes:
yahoo.com
yahoocom
mail.ru
mailru
You need to leave:
yahoo.com
mail.ru

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DevMan, 2019-10-07
@serj37

find ^[^.]+$and replace with an empty string.

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