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  1. or download this
    #!/usr/bin/perl -wl
use strict;
...

print ${ name_me() }
  2. or download this
    SCALAR(0x184068)
Use of uninitialized value in print at bar.pl line 15.

Use of uninitialized value in print at bar.pl line 17.
  3. or download this
    $ perl -e 'do() || ! do() ;'
Undefined subroutine &main::try