Your code (that, what you wanted) should be as easy as: 
my @match_A = split /\t/, $line;
push @list_of_headers, @match_A[4..$#match_A];

[download]
@list_of_headers= @match_A[4..$#match_A];

[download]
 No need for a loop...

Update: Thanks to Hofmator for correcting me! ++
s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

In reply to Re: How to count the number of columns in a line by Skeeve
in thread How to count the number of columns in a line by Win

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