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Full Discussion: Need awk to extract lines and sort
Top Forums Shell Programming and Scripting Need awk to extract lines and sort Post 302360930 by ripat on Sunday 11th of October 2009 01:55:46 PM
Old 10-11-2009
Quote:
Originally Posted by genehunter
Hi,
That worked!
Thanks to durden_tyler, pravin27 and ripat.
Once again, thanks for helping me out. I am not a programmer, but a biologist, kind of masquerading as a bioinformatician; purely due to necessity rather than choice.
This forum has been of so much use to me.
Code:
awk 'NR==1 || $5=="ADD"'

Can you please tell me what the two pipes do?
Is that the (OR) operator?
These are not pipes but the logical operator for OR. In pseudo code this would mean:

if line number equal 1 OR 5th field equal "ADD" ...
 

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LEARN ABOUT DEBIAN

postfix-add-policy

POSTFIX-ADD-POLICY(8)					      System Manager's Manual					     POSTFIX-ADD-POLICY(8)

NAME

       postfix-add-policy - add policy service to Postfix master.cf

SYNOPSIS

       postfix-add-policy [policy name...] [username...] [argv...]

DESCRIPTION

       The  postfix-add-policy(8)  command  adds  an  smtp  policy server named policy name running using username and called as argv to etc/post-
       fix/master.cf to facilitate integration of SMTP policy servers such as postgrey or postfix-policyd-spf-perl.  The configuration is based on
       the Postfix SMTPD_POLICY_README.  Adminstrators should verify it is appropriate for their requirements.

       The original file is copied prior to modification and left in /etc/postfix to make it possible to revert changes easily.

       Available in the Debian package for Postfix version 2.5.3 and later.

DIAGNOSTICS

       If the given policy name  already appears in the master.cf, a message will be printed to standard out and master.cf will not be modified.

ENVIRONMENT

       MAIL_CONFIG
	      Directory with Postfix configuration files.

	      The  postfix-add-policy(8)  command  should  use	this, but it currently doesn't.  It is hard coded to /etc/postfix.  This should be
	      changed.

CONFIGURATION PARAMETERS

       None

FILES

       /etc/postfix/master.cf

SEE ALSO

       postconf(5), Postfix configuration

LICENSE

       This software is licensed under the MIT open source license.

AUTHOR(S)
       Scott Kitterman
       <scott@kitterman.com>

															     POSTFIX-ADD-POLICY(8)
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