in reply to Write in files

Personally, I would use DBI and DBD::CSV to do this.

If you would look at your two files as tables in a database, then it becomes a matter of a simple SQL query to extract the info and export it to a new table with all info combined.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

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