Dear Monks,

In am new to Perl scripting. I have done some research for solving this question but I would need some help with the code.
I have the following file.txt (X and Y state for above and below text lines): 

XXXXXXXXXX         YYYYYYYY
TIFF     1..203
         /def="Z/AA:XGproxy1"
         /pattern="gdgdfn6N6"                   
TIFF     trans(256..298)
         /def="Z/AA:ZYprompt5"
         /pattern="HbgREV5ehe757gAH"
TIFF     trans(303..323)
         /pattern="hfftvt&&jdgY=)"                  
XXXXXXXX            YYYYYYYY

[download]
Further details:
- TIFF lines are repeated several times along the text.
-columns are separated by whitespaces.
- TIFF length is defined as (example):
TIFF 1..203
or (trans before interval number)
TIFF trans(256..298)

I want to:
1. calculate total summed length of all TIFFs (1-203 + 256-298 etc..)
2. calculate gaps in between (203-256 + 298-303 etc..)
I tried the following code but it print all the lines as output: 
foreach $row (@file){ 
    if ($row =~ /TIFF\s+([0-9.]+)/g){
    @columns = split(/\s+../, $row); 
    $difference = scalar(@columns[2]) - scalar(@columns[1]);
print ("$difference\n");
    }
}

[download]

In addition I want to print all patterns in another file2.txt, taking part of definition (i.e. XGproxy1) as an header:

Example outputs:
>XGproxy1
gdgdfn6N6
>ZYprompt5
HbgREV5ehe757gAH

I tried the following code but it prints only the first pattern and I do not know how to print into FILE2. 

open (FILE1, 'file1.txt');
open (FILE2, 'file2.txt');
    $content =~ /pattern="([A-Z\s]+)/g;
$query = $1;
$query =~ s/\s+//g;
print("$query\n”);

[download]

It would be very appreciated if anyone could give me some help with writing a proper code or point me in the correct direction.

In reply to Extract length sum from columns and print pattern into another file by rebkirl

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