Hi, I am new with Perl, and I am getting a little crazy trying to solve a problem with files (that is maybe trivial). I have two files in the form of columns separated by tabs, one with my data (IDs and numbers assigned to these IDs) and the other one with IDs conversions. I need to substitute the IDs in my data file for the other IDs. For example, my data file is like this: ID number \n house 325 \n car 1456 \n table 2489 \n ... And the conversion file is: car opel \n house flat \n table wood \n ... What I want is something like this: ID number flat 325 opel 1456 wood 2489 ... I am going over through many tutorials but I am quite lost, I don't know how even start. Can someone help me? Many thanks, Herny

In reply to file handling by herny

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