Got the desired output:
# use strict;
#use warnings;
my %hash;
open my $fh, '<','abc.txt' or die $!;
while (<$fh>) {
chomp;
my ($key, $val , $val1) = split '\|';
$hash{$val1}++;
}
@sorted= reverse sort keys %hash;
#print "After reverse sorting @sorted\n";
################sorts and prints the array salaries in descending orde
+r
for($i=0;$i<=20;$i++)
{
for($j=$i+1;$j<=20;$j++)
{
if ($sorted[$i] < $sorted[$j])
{
$temp = $sorted[$i];
$sorted[$i] = $sorted[$j];
$sorted[$j] = $temp;
}
}
}
print "The salaries in unique and sorted descending order are\n";
print "@sorted\n";
Thanks All.