Let me try explaining my problem another way: 
File A contains the following headers:

C1    C2    C3    C4

File B contains the following headers:

CA    CB    CC    CD


File A, $C1, contains "src/dst" strings

File A, $C2 contains IP Adresses relative to each "src/dst" string

File B, $CA  contains "src/dst" strings

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NOTE: File A, Column C1 has a DIFFERENT label than File B, Column CA, although they contain the same data! 
File B, $CB contains link speed

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the command: 
merge.pl [ File A C1,C2 : File B CA,CB ]

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should return: 
Link Name    IP    ifSpeed

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where the above are header labels, with corresponding data listed in columns below. Also note, that the program must be smart enough to generate new header names. Thanks for your replies, thus far.

In reply to Merging Files Conundrum: A Better Explanation(?) by Limo

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