Hello, I am very much new to perl.Learning it everyday. I have two files which are in following format. File 1 : value1 value2 diff value3 value 4 mango Total 10 20 30 40 50 apple 10 45.25 35 56 32 File2 : value1 value2 diff value3 value 4 mango Total 15.6 20 30 40 50 apple 12.3 45 35 56 32 I want to compare those and then find out which parameters are diff and copy both in 3rd file so that i know which parameters are different in those two files. Thanks for your help and advise ! Looking forward to it !

Original content restored above by GrandFather

how to update nodes and formating here ?

In reply to comapring colums in file by aksy

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