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sorry, actualy example I mention above is not my real data, but the goal is the same, I want to have the first column consecutive..
after trying "sort command" I found part of my real data like below.
please see first column, it is not fully order. How to fix it?
I put your data into a file and then ran "sort -n filename". It listed everything in numerical order based on the first column. 100, 101, 1000, 1001, 1002,....etc.
sorry , I also wonder how "sort -n filename" command can change first column only where as it does not mention which column.
why not "sort -n -1 filename" ?. If I want to make second column consecutive rather than first column what should I write?
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