Thanks for the info, but doesn't this still open possibly unnecessary file handles? Maybe I should elaborate, and perhaps ask forgiveness for not being detailed enough. 
while(<DATA>) {
    chomp;
    if ($_ =~ m#^(\d+)/(\d+)/(\d+)\s+.*admin2;user) {
        open(FH$3, ">$3.$2.$1");
        print "$_\n" FH$3;
    }
}

[download]


The problem with the above, is FH$3 may already be open, and I don't want to try to reopen it.

And the problem with my first example is that it may open files for which I have no data, for example there was no data on the 15th, but I had opened the file anyway ( resulting in an un-needed 0 length file.

Thanks again, for the help

agent_smith

In reply to Re^2: How can you check to see if a file handle is already open? by agent_smith
in thread How can you check to see if a file handle is already open? by agent_smith

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