> We will have a beautiful DSL so you don’t have to quote arguments as string...

If i'm using Perl's Shell.pm (as mentioned elsewhere here by btilly) and wanted to avoid quoting arguments then I could do:

  use 5.016;
  use warnings;
  use Shell ();

  use PerlX::QuoteOperator ls => {
    -emulate => 'qq',
    -with    => sub ($) { Shell::ls($_[0]) },
  }; 

  use PerlX::QuoteOperator uname => {
    -emulate => 'qq',
    -with    => sub ($) { Shell::uname($_[0]) },
  }; 

  use PerlX::QuoteOperator ip => {
    -emulate => 'qq',
    -with    => sub ($) { Shell::ip($_[0]) },
  }; 

  # and then...

  ls();
  uname(-a);
  ip(-4 addr);

But this seems to be an overkill because I could just use Perl's backticks (http://perldoc.perl.org/perlop.html#Quote-Like-Operators)...

  `ls`;
  `uname -a`;
  `ip -4 addr`;

And it works with variables...

  my $x = "/usr/local/";
  my $files = `ls -l $x`;

and piping...

  my $perl_files = `ls | grep .pl`;

Shell.pm also works with variables & piping but I think that backticks are probably Perl's best DSL for dealing (easily) with shell stuff :)