- <Die XPos="-2" YPos="11">
 <FinalValue="1" />
 <C4Value="65" />
 <LFValue="95" />
 <FMValue="98" />
 <ISValue="1.9" />
 </Die>
- <Die XPos="-2" YPos="12">
 <FinalValue="1" />
 <C4Value="75" />
 <LFValue="95" />
 <FMValue="9.1" />
 <ISValue="1.0" />
 </Die>
- <Die XPos="-2" YPos="11">
 <FinalValue="1" />
 <C4Value="68" />
 <LFValue="99" />
 <FMValue="99" />
 <ISValue="1.0" />
 </Die>
- <Die XPos="-5" YPos="12">
 <FinalValue="1" />
 <C4Value="70" />
 <LFValue="99" />
 <FMValue="9.3" />
 <ISValue="1.0" />
 </Die>
THE ABOVE ARE SOME DATA FROM THE FILE AND I WILL LOVE TO HAVE THE DATA IN THE ORDER BELOW.  AFTER THAT, I WANT TO WRITE IT IN ANOTHER FILE AND RE-NAME THE FILE WITH THE NAME OF THE OLD ONE.

#BELOW IS THE ORDER I WANT THEM TO BE(THE CHANGES HAS TO AFFECT THIS FOUR DATA AND THE REMAINING DATA ON THE FILE REMAINS THE SAME.) THE CHANGES IS TO SWITCH THE POSITION AND NOTHING ELSE.
 <FMValue="87" />
 <ISValue="0.8" />
 <LFValue="95" />
 <C4Value="75" />


#BELOW IS WHAT I HAVE SO FAR
 
open (IN, "lots_info") or die "can't: $!";
open (OUT, ">new.txt") or die "can't: $!";
while(<IN>){
 if (/(FinalValue="[1-6]")/) {
     print OUT "<$1/>\n";
     my $C4 = <IN>;
     my $LF = <IN>;
     my $FM = <IN>;
     my $IS = <IN>;
     print OUT map{$_}($FM,$IS,$LF,$C4);
     next;
  }
}
close(IN);
close(OUT);


Here's modified (and simplified) code to print out the file with the switch made - the map was redundant, a print without parameters just reprints the incoming lines.

while(<IN>){
print OUT ;
 if (/(FinalValue="[1-6]")/) {
     my $C4 = <IN>;
     my $LF = <IN>;
     my $FM = <IN>;
     my $IS = <IN>;
     print OUT $FM,$IS,$LF,$C4;
  }
}

You then need a rename command to overwrite the old file with the new after you have closed them. Check the output file contents first before you run this extra command for the first time!

Thank you so much. When I tried the code you gave me, it works perfectly except that this line is in this form.
<ISValue="1.0" />  </Die>
The above line suppose to be only   <ISValue="1.0" /> and the </Die> suppose to be the last line. The data suppose to be in the format below.  
<Die XPos="-2" YPos="12">
 <FinalValue="1" />
 <FMValue="9.1" />
  <ISValue="1.0" />
  <LFValue="95" />  
  <C4Value="75" />
   </Die>
Thank you so much for your help so far.  It helps a lot.


I am very surprised at the new reported behaviour and can't see how that can happen from the sample data and sample program.  Do you have any extra information or any differences in what you did to what has been posted?

The full file looks like this:
- <Map WId="GH72L279YZA0">
- <Wales>
 <IPO Value="604.3" />
 </Wales>
- <Die XPos="-2" YPos="11">
 <FinalValue="1" />  
 <C4Value="65" />  
 <LFValue="95" />  
 <FMValue="98" />  
 <ISValue="1.9" />  
 </Die>
- <Die XPos="-2" YPos="12">
 <FinalValue="1" />  
 <C4Value="75" />  
 <LFValue="95" />  
 <FMValue="9.1" />  
 <ISValue="1.0" />  
 </Die>
- <Die XPos="-2" YPos="11">
 <FinalValue="1" />  
 <C4Value="68" />  
 <LFValue="99" />  
 <FMValue="99" />  
 <ISValue="1.0" />  
 </Die>
- <Die XPos="-5" YPos="12">
 <FinalValue="1" />  
 <C4Value="70" />  
 <LFValue="99" />  
 <FMValue="9.3" />  
 <ISValue="1.0" />  
 </Die>
TO BE ABLE TO VIEW THE RESULT BEFORE RENAMING THE FILE, I USE A LOOP TO LOOP THROUGH THE DATA IN THE <OUT> FILE. THAT WAS WHAT I DID.
WHICH OTHER WAY CAN I PREVIEW THE DATA BEFORE RENAMING THE FILE AND WHAT RENAMING CODE CAN I USE.  SORRY FOR ASKING TOO MANY QUESTIONS.
I USE THIS TO PRINT OUT THE DATA:
@array= <OUT>;
foreach $array(@array){
print "$array\n";}

I ran my code with your data, as follows:

Code:

while(<DATA>){   print ;    if (/(FinalValue="[1-6]")/) {   my $C4 = <DATA>;   my $LF = <DATA>;   my $FM = <DATA>;   my $IS = <DATA>;   print $FM,$IS,$LF,$C4;     } }   __END__ - <Map WId="GH72L279YZA0"> - <Wales>  <IPO Value="604.3" />    </Wales> - <Die XPos="-2" YPos="11">    <FinalValue="1" />    <C4Value="65" />    <LFValue="95" />    <FMValue="98" />    <ISValue="1.9" />    </Die>   - <Die XPos="-2" YPos="12">    <FinalValue="1" />    <C4Value="75" />    <LFValue="95" />    <FMValue="9.1" />    <ISValue="1.0" />    </Die>   - <Die XPos="-2" YPos="11">    <FinalValue="1" />    <C4Value="68" />    <LFValue="99" />    <FMValue="99" />    <ISValue="1.0" />    </Die>   - <Die XPos="-5" YPos="12">    <FinalValue="1" />    <C4Value="70" />    <LFValue="99" />    <FMValue="9.3" />    <ISValue="1.0" />    </Die>

Here is the result

Code:

- <Map WId="GH72L279YZA0"> - <Wales>  <IPO Value="604.3" />    </Wales> - <Die XPos="-2" YPos="11">    <FinalValue="1" />    <FMValue="98" />    <ISValue="1.9" />    <LFValue="95" />    <C4Value="65" />    </Die>   - <Die XPos="-2" YPos="12">    <FinalValue="1" />    <FMValue="9.1" />    <ISValue="1.0" />    <LFValue="95" />    <C4Value="75" />    </Die>   - <Die XPos="-2" YPos="11">    <FinalValue="1" />    <FMValue="99" />    <ISValue="1.0" />    <LFValue="99" />    <C4Value="68" />    </Die>   - <Die XPos="-5" YPos="12">    <FinalValue="1" />    <FMValue="9.3" />    <ISValue="1.0" />    <LFValue="99" />    <C4Value="70" />    </Die>

Which looks correct to me.

If you can tell me what is wrong with the order in my answer, or what is different about your code to cause it to perform in a different way, I may be able to help a bit further

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