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Read input from Keyboard, do not proceed if no input


 
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Old 02-26-2016
As an addendum...

You will need to work out the error checking for each important field.

For example to gather the email address somebody.something@someaddress.extension you will have to check that it has a valid format. Not to forget that once passed it has to be checked for email validity too.
The above example is valid although does not exist but somebody.somethinATsomeaddress.extension is not.

Anything requiring a number only will have to be checked too although this should be staright forward.

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SEND-REMINDERS(1)					User Contributed Perl Documentation					 SEND-REMINDERS(1)

NAME
Send-reminders - send email reminders for special occasions SYNOPSIS
Send emails reminders set by users for special occasions. DESCRIPTION
Email-reminder allows users to define events that they want to be reminded of by email. Possible events include birthdays, anniversaries and yearly events. Reminders can be sent on the day of the event and a few days beforehand. This script is meant to be invoked everyday by a cron job. It mails the actual reminders out. When run by the root user, it processes all of the spooled reminders. When run by a specific user, it only processes reminders set by that user. OPTIONS
--help Displays basic usage message. --simulate Does not actually send any emails out. --verbose Prints out information about what the program is doing, including the full emails being sent out. --version Displays the version number. FILES
~/.email-reminders, /etc/email-reminder.conf AUTHOR
Francois Marier <francois@email-reminder.org.nz> SEE ALSO
email-reminder-editor, collect-reminders COPYRIGHT
Copyright (C) 2004-2010 by Francois Marier Email-Reminder is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Email-Reminder is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Email-Reminder; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. perl v5.14.2 2012-05-28 SEND-REMINDERS(1)

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