Shell Programming and Scripting

CATEGORYDISPLAY JSP.A-SRC_BLD;2.4
CATEGORYDISPLAY JSP.A-SRC_BLD;2.5
CATEGORYDISPLAY JSP.A-SRC_BLD;2.1
CATEGORYDISPLAY JSP.A-SRC_BLD;2.2

 
CATEGORYDISPLAY JSP.A-SRC_BLD;2.4
CATEGORYDISPLAY JSP.A-SRC_BLD;2.5
BRANDDISPLAY JSP.A-SRC_BLD;2.5
BRANDDISPLAY JSP.A-SRC_BLD;2.6
BUNDLEDISPLAY JSP.A-SRC_BLD;2.6
BUNDLEDISPLAY JSP.A-SRC_BLD;2.7
CACHEDFOOTERDISPLAY JSP.A-SRC_BLD;2.25
CACHEDFOOTERDISPLAY JSP.A-SRC_BLD;2.26
CACHEDPRODUCTONLYDISPLAY JSP.A-SRC_BLD;2.25
CACHEDPRODUCTONLYDISPLAY JSP.A-SRC_BLD;2.26
CACHEDPRODUCTSEARCHRESULTBLOCK JSP.A-SRC_BLD;2.10
CACHEDPRODUCTSEARCHRESULTBLOCK JSP.A-SRC_BLD;2.11

for JSP in `cut -d' ' -f1 infile.txt | uniq `
do   
       grep ${JSP} infile.txt | sort -rn | head -1
done

#!/usr/bin/ksh
mPrevFN="First_Time"
IFS=";"
while read mFName mVersion
do
  if [[ "${mFName}" != "${mPrevFN}" ]]; then
    if [[ "${mPrevFN}" != "First_Time" ]]; then
      echo ${mPrevFN} ${mPrevV}
    fi
  fi
  mPrevFN=${mFName}
  mPrevV=${mVersion}
done < input_file
if [[ "${mPrevFN}" != "First_Time" ]]; then
  echo ${mPrevFN} ${mPrevV}
fi

nawk -F';' '{a[$1]=($1 in a)?((a[$1]>$2)?a[$1]:$2):$2}END{for (i in a) print i FS a[i]}' myFile

#!/usr/bin/perl

use strict ;
use warnings ;

my %h ;
while (<DATA>) {
	(my $k, my $v) = split /;/ ;
	chomp $v ;
	$h{$k} .= "$v " ;
		}

END {
	foreach (keys %h) {
		my @a = sort {$b <=> $a} ( split / /,$h{$_} );
		print "$_;$a[0]","\n" ;
		}
	
	}

__DATA__
CATEGORYDISPLAY JSP.A-SRC_BLD;2.4
CATEGORYDISPLAY JSP.A-SRC_BLD;2.5
BRANDDISPLAY JSP.A-SRC_BLD;2.5
BRANDDISPLAY JSP.A-SRC_BLD;2.6
BUNDLEDISPLAY JSP.A-SRC_BLD;2.6
BUNDLEDISPLAY JSP.A-SRC_BLD;2.7
CACHEDFOOTERDISPLAY JSP.A-SRC_BLD;2.25
CACHEDFOOTERDISPLAY JSP.A-SRC_BLD;2.26
CACHEDPRODUCTONLYDISPLAY JSP.A-SRC_BLD;2.25
CACHEDPRODUCTONLYDISPLAY JSP.A-SRC_BLD;2.26
CACHEDPRODUCTSEARCHRESULTBLOCK JSP.A-SRC_BLD;2.10
CACHEDPRODUCTSEARCHRESULTBLOCK JSP.A-SRC_BLD;2.11

sort -rn infile |awk -F \; '!a[$1]++'