Quote:
Originally Posted by PTrenholme
You've asked for a Linux command to process your data file, and several suggestion have been provided, but a more general solution (in my opinion) would be to drop your data into a data base system and extract what you want from that data base when you want it.
For example, if your file was in a SQL data base, a "SELECT UNIQUE COL_NUMBER FROM DATA_TABLE ORDER BY INPUT_ORDER;" might be all you need.
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OP this is good advice. DBs are designed to this problem set.
