script 1:

my $script2 = ...; # including dir as required
my $param1 = ...;
my $param2 = ...;

system("$script2 \"$param1\" \"$param2\"");

script 2:

my $param1 = shift; #Pull off the first command line argument
my $param2 = shift; #Pull off the second command line argument

#do stuff with $param1 and $param2