use IPC::Open2;

# with named filehandles
$pid = open2(\*RDR, \*WTR, $cmd_with_args);
$pid = open2(\*RDR, \*WTR, $cmd, "arg1", "arg2", ...);
# with object-oriented handles
use FileHandle;
my($rdr, $wtr) = (FileHandle->new, FileHandle->new);
$pid = open2($rdr, $wtr, $cmd_with_args);