That's not how you use command line options.

There are many ways to retrieve command-line parameters, below are two that I use often:

# method 1
use strict;
die "you must provide command-line parameters" if ! @ARGV;
print "command-line option: $_\n" for @ARGV;


# method 2
use strict;
use Getopt::Long;

GetOptions
(
    'useTR'         => \{ my $useTR = 0 },
);

unless ( defined $useTR ) {
    die "Usage: $0 -useTR";
}

# Then you use the $useTR variable onwards
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