/tmp>cat shebang.pl

#!/usr/bin/perl -w
# ^- note: Shebang on second line, first line is empty!

use strict;
use warnings;

print 'Hello\n';
/tmp>chmod +x shebang.pl

/tmp>./shebang.pl
./shebang.pl: line 5: use: command not found
./shebang.pl: line 6: use: command not found
./shebang.pl: line 8: print: command not found

/tmp>