Hi, I need to create a perl script to read input from 2 files and parse this information into an output file. The input files are of the following form. 
File1                                 File2 
------------------                    ------------------
tableA    ColumnA                     tableB      ColumnB

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How would i write a script that would read line by line from each file and write to output file. Each TableA and ColumnA value number are unique. The same goes for file2. The output file must contain exact matches of (TableA == TableB) && (ColumnA == ColumnB). If values in Files1 are not present in File2 and vice versa must display warning on same line in output file Output file must look like so....... 
TableA ColumnA TableB ColumnB
???    ???     TableB ColumnB  #display warning 
TableA ColumnA ???    ???      #display warning

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Thanks in advance

In reply to multiple file reading by Anonymous Monk

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