To compare and report on file handles stored in various data structures, I'd like to uniquely identify a Perl file handle. I noticed that running: 

open my $fh, '<', $0 or die "error: open '$0': $!";
my $fh_hex = sprintf '0x%x', $fh;
printf "fh='$fh' fh_hex='$fh_hex'\n";

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produces: 
fh='GLOB(0x202068)' fh_hex='0x202068'

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So I suppose I could use $fh_hex above as a string that uniquely identifies a file handle. Is there a better way?

In reply to Hex value of Perl file handle to uniquely identify by eyepopslikeamosquito

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