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Full Discussion: Finding Max value from an array
Top Forums Shell Programming and Scripting Finding Max value from an array Post 302340094 by kshji on Sunday 2nd of August 2009 02:00:52 PM
Old 08-02-2009
Here is solution for you, little fix your 1st script. No need to echo array, use it. You can test values or give the list for sort and then take so many value as you like.
Code:
#!/bin/ksh
#!/bin/bash

array=(0338 0337 0339 0340 0401 0402 0403)
for i in ${array[*]}
do
        echo "$i"
done | sort -nr | head -2

Or you can put sorted list to the array and take so many values as you like:
Code:
# set array using array=( list of values )
# make max
max=(
$(for i in ${array[*]}
do
        echo "$i"
done | sort -nr ) 
)
echo "1st: ${max[0]}" 
echo "2nd: ${max[1]}"
echo "3th: ${max[2]}"



---------- Post updated at 08:56 PM ---------- Previous update was at 08:32 PM ----------

Using file:
Code:
array=( $(<somefile ) )

max=(
$(for i in ${array[*]}
do
        echo "$i"
done | sort -nr )
)
echo "1. ${max[0]}"
echo "2. ${max[1]}"

Or using sort and two first lines:
Code:
cnt=1
sort -nr somefile | while read line
do
        (( cnt  > 2 )) && break
        echo "$cnt. $line"
        (( cnt+=1))
done

Or ...

---------- Post updated at 09:00 PM ---------- Previous update was at 08:56 PM ----------

Using sort + awk
Code:
sort -nr somefile | awk 'NR <= 2 { print NR ".",$1 }'

 

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LEARN ABOUT DEBIAN

lire::max

Max(3pm)						  LogReport's Lire Documentation						  Max(3pm)

NAME

       Lire::Max - Lire class that implements the max operator

SYNOPSIS

	use Lire::Max

DESCRIPTION

       Class that implements the max operator. This operator will find the minimum value appearing in a DLF field among a group of DLF records.

METHODS

   new( %params )
       Creates a new Lire::Max object.

SEE ALSO

       Lire::ReportSpec(3pm), Lire::ReportOperator(3pm), Lire::Aggregator(3pm), Lire::Aggregate(3pm).

AUTHOR

	 Francis J. Lacoste <flacoste@logreport.org>

VERSION

       $Id: Max.pm,v 1.10 2008/03/09 19:27:31 vanbaal Exp $

COPYRIGHT

       Copyright (C) 2001, 2002 Stichting LogReport Foundation LogReport@LogReport.org

       This file is part of Lire.

       Lire 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							    2008-03-09								  Max(3pm)
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