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Top Forums Shell Programming and Scripting get last section from large logfile Post 51433 by google on Wednesday 19th of May 2004 05:00:17 PM
Old 05-19-2004
Change the RS value from RS="" to RS="===*\n" The RS value is the Record Separator value. FS is field separator. Changing RS to "===*\n" specifies that 1 record is delimited by multiple === values with a new line at the end of the record. Each field within one of these records is delimited by FS, in this case a new line.

this could be shortened to
cat yourfile | awk 'BEGIN{RS="===*\n";FS="\n";} END{print $NR}'

Last edited by google; 05-19-2004 at 06:09 PM..
 

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Template::Plugin::Datafile(3pm) 			User Contributed Perl Documentation			   Template::Plugin::Datafile(3pm)

NAME
Template::Plugin::Datafile - Plugin to construct records from a simple data file SYNOPSIS
[% USE mydata = datafile('/path/to/datafile') %] [% USE mydata = datafile('/path/to/datafile', delim = '|') %] [% FOREACH record = mydata %] [% record.this %] [% record.that %] [% END %] DESCRIPTION
This plugin provides a simple facility to construct a list of hash references, each of which represents a data record of known structure, from a data file. [% USE datafile(filename) %] A absolute filename must be specified (for this initial implementation at least - in a future version it might also use the "INCLUDE_PATH"). An optional "delim" parameter may also be provided to specify an alternate delimiter character. [% USE userlist = datafile('/path/to/file/users') %] [% USE things = datafile('items', delim = '|') %] The format of the file is intentionally simple. The first line defines the field names, delimited by colons with optional surrounding whitespace. Subsequent lines then defines records containing data items, also delimited by colons. e.g. id : name : email : tel abw : Andy Wardley : abw@tt2.org : 555-1234 sam : Simon Matthews : sam@tt2.org : 555-9876 Each line is read, split into composite fields, and then used to initialise a hash array containing the field names as relevant keys. The plugin returns a blessed list reference containing the hash references in the order as defined in the file. [% FOREACH user = userlist %] [% user.id %]: [% user.name %] [% END %] The first line of the file must contain the field definitions. After the first line, blank lines will be ignored, along with comment line which start with a '"#"'. BUGS
Should handle file names relative to "INCLUDE_PATH". Doesn't permit use of '":"' in a field. Some escaping mechanism is required. AUTHOR
Andy Wardley <abw@wardley.org> <http://wardley.org/> COPYRIGHT
Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Template::Plugin perl v5.14.2 2011-12-20 Template::Plugin::Datafile(3pm)
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