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I am developing a bash shell script that will allow the users their email addresses. However, I would like to check if the email is valid, just the form, not the actual email. For example,

tommy@hotmail.com

is a valid email but 

 tommy#hotmail.com

is not... is there a way that would allow me the verify the input and prompt them for another input if it's wrong?

Thanks

user3351901
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    I today defined a very basic regex for it in http://stackoverflow.com/a/22508003/1983854, also there I link a very good one. – fedorqui Mar 19 '14 at 17:36
  • Hi, can I follow up on a question? what if i have numbers? how should i implement numbers into the script? – user3351901 Mar 19 '14 at 19:14

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