$ perls 1 + 1
2
$ perls 67 / 33
2.03030303030303
$ perls \(67 / 33\) + 1
3.03030303030303
$ perls '(67 / 33) + 1'
3.03030303030303
$ perls 'my \\\$x; \\\$x = 41; ++\\\$x'
42
$ perls `perle 'my $x; $x = 41; ++$x; say $x'`
42
$ perle 'my $x; $x = 41; ++$x; say $x'
42
$ perls Hello, world!
Hello, world!