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Full Discussion: sed - print only matching regex
Top Forums Shell Programming and Scripting sed - print only matching regex Post 302315051 by jim mcnamara on Monday 11th of May 2009 10:51:23 AM
Old 05-11-2009
If the field is four numbers, and you have -F', ' (with a modern awk) leading and trailing delimiters will be removed. In this case I set delimiters as space and comma. You may need to add other whitepsace characters like tab to the -F option argument. I don't know what is in your file.

Try
Code:
awk -F', '   '{ for(i=1; i<=NF; i++) if($i ~/[0-9]{4}/) {print $i} }' filename | od -c | more

to see what kinds of extra characters you are getting. -F '[^0-9]' makes everything that is not a number a field delimiter, if you cannot tell what to exclude
 

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LEARN ABOUT DEBIAN

biber::entry::name

Biber::Entry::Name(3pm) 				User Contributed Perl Documentation				   Biber::Entry::Name(3pm)

NAME

       Biber::Entry::Name - Biber::Entry::Name objects

   new
	   Initialize a Biber::Entry::Name object, optionally with key=>value arguments.

	   Ex: Biber::Entry::Name->new( lastname=>"Bolzmann", firstname=>"Anna Maria", prefix => "von" )

   TO_JSON
	  Serialiser for JSON::XS::encode

   notnull
	   Test for an empty object

   was_stripped
	   Return boolean to tell if the passed field had braces stripped from the original

   set_hash
	   Set a hash for the name

   get_hash
	   Get a hash for the name

   set_index
	   Set a field telling what position in the name list the name is

   get_index
	   Get the index of a Biber::Entry::Name object

   set_uniquename
	   Set uniquename for a visible Biber::Entry::Name object
	   Sets global flag to say that some uniquename value has changed

   set_uniquename_all
	   Set uniquename for a Biber::Entry::Name object

   get_uniquename
	   Get uniquename for a visible Biber::Entry::Name object

   get_uniquename_all
	   Get uniquename for a Biber::Entry::Name object

   reset_uniquename
	   Reset uniquename for a Biber::Entry::Name object

   set_minimal_info
	   Set the string of lastnames and string of fullnames
	   Used to track uniquename=5 or 6

   get_minimal_info
	   Get the name context used to track uniquename=5 or 6

   get_namepart
	   Get a namepart by passed name

   set_firstname
	   Set firstname for a Biber::Entry::Name object

   get_firstname
	   Get firstname for a Biber::Entry::Name object

   get_firstname_i
	   Get firstname initials for a Biber::Entry::Name object

   set_middlename
	   Set middlename for a Biber::Entry::Name object

   get_middlename
	   Get middlename for a Biber::Entry::Name object

   get_middlename_i
	   Get middlename initials for a Biber::Entry::Name object

   set_lastname
	   Set lastname for a Biber::Entry::Name object

   get_lastname
	   Get lastname for a Biber::Entry::Name object

   get_lastname_i
	   Get lastname initials for a Biber::Entry::Name object

   set_suffix
	   Set suffix for a Biber::Entry::Name object

   get_suffix
	   Get suffix for a Biber::Entry::Name object

   get_suffix_i
	   Get suffix initials for a Biber::Entry::Name object

   set_prefix
	   Set prefix for a Biber::Entry::Name object

   get_prefix
	   Get prefix for a Biber::Entry::Name object

   get_prefix_i
	   Get prefix initials for a Biber::Entry::Name object

   set_gender
	   Set gender for a Biber::Entry::Name object

   get_gender
	   Get gender for a Biber::Entry::Name object

   set_namestring
	   Set namestring for a Biber::Entry::Name object

   get_namestring
	   Get namestring for a Biber::Entry::Name object

   set_nameinitstring
	   Set nameinitstring for a Biber::Entry::Name object

   get_nameinitstring
	   Get nameinitstring for a Biber::Entry::Name object

   name_to_bbl {
	   Return bbl data for a name

   name_to_bltxml {
	   Add BibLaTeXML for the name to an XML::Writer object

   dump
	   Dump Biber::Entry::Name object

AUTHORS

       Francois Charette, "<firmicus at ankabut.net>" Philip Kime "<philip at kime.org.uk>"

BUGS

       Please report any bugs or feature requests on our sourceforge tracker at <https://sourceforge.net/tracker2/?func=browse&group_id=228270>.

COPYRIGHT &; LICENSE
       Copyright 2009-2012 Francois Charette and Philip Kime, all rights reserved.

       This module is free software.  You can redistribute it and/or modify it under the terms of the Artistic License 2.0.

       This program 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.

perl v5.14.2							    2012-06-17						   Biber::Entry::Name(3pm)
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