Hi Monks,

I have started to learn perl but now I am completely stuck in this problem, thus I seek your help.

I have seven files with different number ranges. I want to compare their ranges and detect the common range from them. Below I have shown an example with three files (file1.txt, file2.txt anf file3.txt). These files are like:

file1.txt:


    68476204: 9-50, 55-75, 80-132
    NC_23987: 2-22, 1001-1085
    68473073: 1-8
    68485121: 1-10, 20-55

[download]

file2.txt:


    68485121: 15-45
    45905121: 2-98, 201-255
    68476204: 8-30, 57-77, 88-180
    NC_23987: 1-18, 1021-1055
    68473073: 14-44

[download]

file3.txt:


    68485121: 16-42
    68476204: 8-22, 55-76, 81-118

[download]

From here, I want to generate two output. First one is the common ranges (common in all three) after matching left column value(which are common in all three of them). For the above input, my output1.txt will be: 

    68485121: 20-42
    68476204: 9-22, 57-75, 88-118

[download]

The second output (output2.txt) contain only those ranges those are >=15. Here, the output2.txt will be:


    68485121: 20-42
    68476204: 57-75, 88-118

[download]

Any type of suggestion is appreciated.

Thanks

In reply to Intermediate range calculation from files by abhikalrt53

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