$ perl -MO=Deparse -0777l11ne ...
BEGIN { $/ = undef; $\ = "\t"; }
...
$ perl -MO=Deparse -l11n0777e ...
BEGIN { $/ = undef; $\ = "\t"; }
...
$ perl -MO=Deparse -ln0777e ...
BEGIN { $/ = undef; $\ = "\n"; }
...