in reply to Regarding Perl+Rasmol Script

  1. use strict; !
  2. There is no need for the @array variable, you can assign to a list of variables directly: 
    @array=split(/-/,$value);
$pdbid=$array[0];
$from=$array[1];
$to=$array[2];
$chainid=$array[3];
if($chainid eq "_")
{
$chainid=" ";
}
$menu1=$array[4];
$menu2=$array[5];
$menu3=$array[6];
@array=();

    [download]
    is better written as 
    ($pdbid, $from, $to, $chainid, $menu1, $menu2, $menu3) = split(/-/,$va
+lue);
if($chainid eq "_") {
  $chainid=" ";
}

    [download]
  3. You should find better names for the $menu1, $menu2 and $menu3 variables.
  4. The rows of print statements are hard to read and completely unnecessary. Use qq{} or heredocs: 
            print <<"*END*";
select :$chainid
wireframe on
wireframe 70
select :$chainid
spacefill on
select :$chainid
spacefill 0.55
select $from-$to:$chainid
wireframe on
wireframe 70
select $from-$to:$chainid
spacefill on
select $from-$to:$chainid
spacefill 0.55
select $from-$to:$chainid
color green
*END*

    [download]

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