Hi, I have to sort a file depending on a particular value, the problem is that the value can be number,string or alphanumeric. So which comparison opertor will work on all these? This is the script : 
use strict;
my $column=3;
my @F;
my @sort_col;
my @lines;
my $file=$ARGV[0];

while(<>) {
    #print "Input line " .$_;
    @F=split(/\|/,$_);
    print "Array elesems $F[3]\n";
    push @sort_col, $F[$column];
    push @lines, "$_";
}


print @lines[sort{
    $sort_col[$a] lt $sort_col[$b]
}
0..$#sort_col] ;

[download]
And the input file : 
D|0|95465tan|2|4|4|14028.77|0.00|BF2-002|22/09/2009|07/01/2009|06/09/2
+009|45544564|
D|0|954564545|1|4|abar_BF4|4|3913.17|0.00|accabar_BF4-003|22/09/2009|0
+7/02/2009|06/09/2009|10254754|
D|0|a454654|1|4|ar_BF4|4|3913.17|0.00|acctrabar_BF4-003|22/09/2009|07/
+02/2009|06/09/2009|11122323|
D|0|Chking|1|4|arabar_BF4|4|3913.17|0.00|acarabar_BF4-003|22/09/2009|0
+7/02/2009|06/09/2009|11122323|

[download]
Thanks

In reply to Comparison of alphanumeric strings by Anonymous Monk

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