It is not allowed to optionally create a variable in an if statement.

I cannot see where this is attempted; can you point this out? (I assume you're referring to the OPed code, but I can't see it anywhere in the thread.) (Update: As an aside, note that conditional creation of a variable is "allowed" in the sense that it is not a syntactic error, but it's not a good idea for reasons discussed here and documented here.)

open my $FH_infile, '<', "$in_file" or die "Can't open $in_file";

And just to satisfy my idle curiosity, can you say why you use the  "$in_file" idiom (stringizing a string)? (I notice talexb also uses the idiom here.)

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: First attempt at bringing in file for input/output by AnomalousMonk
in thread First attempt at bringing in file for input/output by catfish1116

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