gawk: Array Sorting

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1 12.2 Controlling Array Traversal and Array Sorting
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1 'gawk' lets you control the order in which a 'for (INDX in ARRAY)' loop
1 traverses an array.
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1    In addition, two built-in functions, 'asort()' and 'asorti()', let
1 you sort arrays based on the array values and indices, respectively.
1 These two functions also provide control over the sorting criteria used
1 to order the elements during sorting.
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· Controlling Array Traversal How to use PROCINFO["sorted_in"].
· Array Sorting Functions     How to use 'asort()' and 'asorti()'.
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