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Full Discussion: Shell script to pull certain fields
Top Forums Shell Programming and Scripting Shell script to pull certain fields Post 302983447 by RudiC on Tuesday 11th of October 2016 03:31:42 PM
Old 10-11-2016
man bash:
Code:
   Parameter Expansion
.
.
.
       ${parameter:offset}
       ${parameter:offset:length}
              Substring Expansion.  Expands to up to length characters of the value of parameter starting at the character specified by offset.  If parameter is @, an  indexed
              array subscripted by @ or *, or an associative array name, the results differ as described below.  If length is omitted, expands to the substring of the value of
              parameter starting at the character specified by offset and extending to the end of the value.  length and offset  are  arithmetic  expressions  (see  ARITHMETIC
              EVALUATION below).

So, with your above $rdfirst variable containing the quoted value,
Code:
echo ${rdfirst:2:2}/${rdfirst:0:2}/
03/09/

shows how to proceed. Give it a try and come back with your results.
 

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LEARN ABOUT DEBIAN

lr_environment

LR_ENVIRONMENT.IN(1)					  LogReport's Lire Documentation				      LR_ENVIRONMENT.IN(1)

NAME

       lr_environment - Export Lire configuration in shell script form

SYNOPSIS

       eval `lr_environment`

DESCRIPTION

       The lr_environment command is used to import the Lire configuration in Lire shell scripts.

       All of Lire configuration variables will be written in a format that can be evaled by the shell.

       Shell scripts don't usually have to use that command, since it is done by the defaults file sourced by each command.

       The old names used by when the configuration was done in shell script are also exported by this script for backward compatibility.

AUTHOR

	 Francis J. Lacoste <flacoste@logreport.org>

VERSION

       $Id: lr_environment.in,v 1.12 2006/07/23 13:16:33 vanbaal Exp $

COPYRIGHT

       Copyright (C) 2003 Stichting LogReport Foundation LogReport@LogReport.org

       This program 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 2 of the License, or (at your option) any later version.

       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.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with
       http://www.gnu.org/copyleft/gpl.html.

Lire 2.1.1							    2006-07-23						      LR_ENVIRONMENT.IN(1)
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