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Top Forums Shell Programming and Scripting SED With Regex to extract Email Address Post 302618829 by ragz_82 on Wednesday 4th of April 2012 01:18:19 PM
Old 04-04-2012
SED With Regex to extract Email Address

Hi Folks,
In my program, I have a variable which consists of multiple lines. i need to use each line as an input. My intention is to extract the email address of the user in each line and use it to process further.

The email address could be anywhere in the whole line. But there will be only one and I need to extract it. The most complex possible format of the email ID is:
first-name.last-name@xyz.com

In other words, first and last names are separated by a period (.) and the first and last names may have a hyphen (-). The domain name (@xyz.com) is fixed and only has letters, no numbers.

We have a Solaris OS and I am using Korn shell. I read some examples on SED command and have made a few attempts to use it. But every time, no matter what regex I use, I get the entire input as the output. I must be doing something very basic thing wrong. Could you please suggest?

Code:
$ echo '92' | sed '/[0-9]+/p'
92

$ echo 'email92' | sed '/[0-9]+/p'
email92

$ echo "abc.xyz@comp.com" | sed '/\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)\(\.\)\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)@comp.com/p'
abc.xyz@comp.com

$ echo "Email address is abc.xyz@comp.com" | sed '/\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)\(\.\)\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)@comp.com/p'
Email address is abc.xyz@comp.com

Note that below is the regex that I arrived at to extract the email address.
Code:
/\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)\(\.\)\([A-Za-z0-9]+\)\(-*\)\([A-Za-z0-9]*\)@comp.com

Any help is greatly appreciated.

Moderator's Comments:
Mod Comment Please use code tags. Video tutorial on how to use them

Last edited by Scrutinizer; 04-04-2012 at 05:05 PM..
 

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Jifty::Plugin::User::Mixin::Model::User(3pm)		User Contributed Perl Documentation	      Jifty::Plugin::User::Mixin::Model::User(3pm)

NAME
Jifty::Plugin::User::Mixin::Model::User - user model base mixin SYNOPSIS
package MyApp::Model::User; use Jifty::DBI::Schema; use MyApp::Record schema { # column definitions }; # Import columns: name, email and email_confirmed use Jifty::Plugin::User::Mixin::Model::User; DESCRIPTION
This mixin may be added to a model to give your user accounts a name and an email address. This module may be used as the basic building block for building account models in your application. It can be combined with mixins from an authentication plugin to create an object suitable for a given authentication mechanism. SCHEMA
This mixin model adds the following columns to the model. name This is the username/nickname for the user of the account. email This is the email address of the account. It is intended as a bare minimum confirmation of identity and for communication of password resets and other account information. email_confirmed This is a flag indicating whether the user has confirmed ownership of the given email address. METHODS
set_email ADDRESS Whenever a user's email is set to a new value, we need to make sure they reconfirm it. validate_email Makes sure that the email address looks like an email address and is not taken. SEE ALSO
Jifty::Plugin::Authentication::Password, Jifty::Plugin::Authentication::Password::Mixin::Model::User LICENSE
Jifty is Copyright 2005-2010 Best Practical Solutions, LLC. Jifty is distributed under the same terms as Perl itself. perl v5.14.2 2010-12-10 Jifty::Plugin::User::Mixin::Model::User(3pm)
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