Just a quick side note. This 

@row = $row;
(@row[0],@row[1],@row[2], @row[3], @row[4], @row[5], @row[6])=split(/\
+s+/,$row);

[download]

is more compactly written as 

my @row = split(/\s+/,$row);

[download]

(Strictly speaking, the latter would create more than 7 array elements, in case there are more fields in the input — but you only seem to have 6 anyway.  The direct equivalent would be @row = (split /\s+/,$row)[0..6];)

Also, @row[3] (i.e. an array slice with a single element) is generally better written as $row[3].

In reply to Re: Spliting file + removing column by Anonyrnous Monk
in thread Spliting file + removing column by AG87

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