I don't know how efficient this is, but it might work well enough if your files are small:
There used to be a bug in asort, so go with caution. Also, asort is a gnu extension (I believe) so it might not be available. You could write a small sort function in the awk programme; again I don't know how efficient that is. I use a small bubble sort function, to avoid asort, but only in conjunction with small tasks because of a concern for efficiency.
EDIT: I ran a quick test to sort 25 values per line, over 100,000 lines. It took 10.6s on my not so speedy laptop.
Last edited by agama; 07-02-2012 at 11:37 PM..
Reason: Additional info.
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