Java validating email address who is evan lysacek dating
In bash speak true means it exits with a zero status, anything else is false.
The status of a command/function is stored in the bash variable "$? variable so that rather than parsing words as whitespace separated items, bash parses them as dot separated.
To fix this problem, you implement an activation system where, after registering, I am sent an email with a link I must click.
I've recently written about using bash arrays and bash regular expressions, so here's a more useful example of using them to test IP addresses for validity.
To belabor the obvious: IP addresses are 32 bit values written as four numbers (the individual bytes of the IP address) separated by dots (periods).
* * @author Roedy Green, Canadian Mind Products * @version 1.0 to do: check validity of & in first part of email address.
Does not probe to see if mailserver * exists in DNS or online. See Validate Email File for * an example of how to use this class.