Here is a best regular expression that will help you to perform a validation and to extract all matched email addresses from a file.
This regular expression matches 99% of the email addresses in use nowadays.
In this article you’ll find a regular expression itself and an example of how to extract matched email addresses from a file with the grep command.
Regular Expression to Match Email Addresses
Use the following regular expression to find and validate the email addresses:
"\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b"
Get a List of all Email Addresses with Grep
Execute the following command to extract a list of all email addresses from a given file:
$ grep -E -o "\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b" file.txt
Option | Description |
---|---|
-E, –extended-regexp | Use extended regular expression |
-o, –only-matching | Print email addresses only |
Thnx!
This matches way more than 99%.
On 10 million, it missed 3! That’s 99.99997%
wow! Cool info. Im new at all this but I like this command! TY.
I tried to limit the number of characters before @ without success.
For example :
grep -E -o “\b[A-Za-z0-9._%+-]{0,4}@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b”
but my results are cut !
Example :
myemail@mydomain.com => mail@mydomain.com
Any idea ?
It should be 1 char to 4 char right ?
grep -E -o “\b[A-Za-z0-9._%+-]{1,4}@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b”
{2.13} catches somename@aaaaa.demon.yy too
Может кто-нибудь подскажет реализацию, но для поиска номеров.
Т.е. первые цифры должны начинаться например с 7, +7, 8, длина должна быть 10, 11 символов.
С номерами есть 2 вот таких регулярных выражения:
Как бы их адаптировать под эту функцию, помогите пожалуйста.
Lovely. Saved my life.