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Sorry for not writing a detailed description of what i am working on. So i have thousands of files in a tab delimited format saved in one folder. Each file has a format of 2000 by 10 table What i want to do right now is create new file with the data i want. So the format of each file follows ..
Gene exp1 exp2 exp3 exp4 ... 1 1050 2020 100 100 2 100 100 100 100 3 224 11 11 11 4 11 15 555 444 5 22 51 55 555 6 55 55 55 555 ...
From the first file i read, I want to extract two columns for example I want 'Gene' and 'exp4' columns and put it in a new file. And from the rest of the other files, I want to extract 'exp4' column only and add on the right side of the two columns i extracted from the first file. So the final format would look like
Gene file1 exp4 file2 exp4 file3 exp4 file4 exp4.... 1 100 200 155 144 2 22 55 222 444 3 4 5 6 . .
So it will have a 2000 by thousands(number of my files) table as a result. I am a beginner in programming and especially in perl. help me please..

In reply to Re^3: Is there any efficient way i can take out a specific column from hundreds of files and put it in one file? by coolda
in thread Is there any efficient way i can take out a specific column from hundreds of files and put it in one file? by coolda

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