Perl and the format command have no knowledge of what is already in the file, it does not magically remember that you already added a heading, it assumes you are running from the start.

You need to keep a record of the line count yourself somewhere, either in this file or another, or read the whole file each time to figure out what $- should be.

In reply to Re: append text to a file by cdarke
in thread append text to a file by mhoang

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