It sounds like what you probably want is to read the entire file into a scalar, then split it on multiple newlines: 
my @text = split(/\n+/,$file);

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Now @text should have text,text2,text3. You don't need the intermediate step of converting newlines to commas in order to split.

In reply to Re: Substitution by DBX
in thread replacing one or more newlines with commas by Kiko

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