Can't use subscript in angle brackets

[Tielman Koekemoer \(TNE\)]

Hi all,

Why can't I use a subscript in the angle brackets? e.g.

@files=`ls /app2/koekemtn/scripts/dbstats/test`;

chomp $files[0];

open ( $files[0] , "<$files[0]") || die "Cannot open $files[0]\n";

while (<$files[0]>) {
        print "$_";
}

TIA