my $np_new = 'usr/castle/np_new/'
my $temp = 'usr/castle/pctemp'

##</code><code>##

copy ($fileName, $np_new.'/usr/castle/pctemp/'$dest{$search})

##</code><code>##

copy ($fileName, $np_new.'/usr/castle/pctemp/' . $dest{$search})
#                                              ^ (concatenation)