I have two tab-delimited files "1.txt" and "2.txt". The structure of both the files is : 
1st file :

Main_File1 Start End 

1           200   250

2           310   340

2nd file :

Main_File2  Start End 

1           200   250

2           350   370

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I want to write a perl code for which the output should be two files i.e. one file having the list of common "start" and "end" positions and other file having unique "start" and "end" positions. From what I have read there will be use of hashes in this.Kindly help.

In reply to Perl File Column Comparison. by gaurav_chetal

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