use File::Temp ();
use Archive::Extract ();

for my $gz ( @ARGV ) {

  my $tmp = File::Temp->new();

  my $ae = Archive::Extract->new( archive => $gz );
  my $ok = $ae->extract( to => $tmp->filename );
  die $ae->error unless $ok;

  # do what you want to the uncompressed content in the
  # file named $tmp->filename
  ...
  # at the end of the scope, $tmp vanishes 
}