Hi all, How can i alter this code so that it only writes to first line in the file: 
# header of file where info gathered

     0.123  0.654   - so write before these values only
     0.987  0.678

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if ($aa =~ /LEU\b/)
                {s/    (.*)/$z3leu  $z2leu  $z1leu   $1/}

[download]

In reply to substitutions on a single line by indie_campbell

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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