Learning AWK Programming

Sort array by values using asort( )

GAWK provides a built-in function, asort( ), to sort the array on values. Numeric values come before string values in the sorting order. The following is the syntax for sorting the array:

Gn = asort(arr)

In the following example, we will use the asort() function to sort the array elements, as per the values assigned to them. The only side effect of using the asort() function with default parameters is that the array's original indexes will be lost and the new array is assigned an index from 1 to n as follows:

$ vi asort_arr.awkBEGIN    {    arr[30] = "volvo"    arr[10] = "bmw"    arr[20] = "audi"    arr[50] = "toyota"    arr["car"] = "ferrari"    arr[70]    = "renault"    arr[110] = 20    arr[40]    = "ford"    arr["num"] = 10 arr[80] = ...