/usr/bin/re.pl is in libdevel-repl-perl 1.003026-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | #!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; # not running under some shell
use Devel::REPL::Script;
Devel::REPL::Script->import('run'); # should be called 'run'
|