31 lines
703 B
Awk
31 lines
703 B
Awk
BEGIN {
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# to make an array, assign elements to it
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array[1] = "first"
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array[2] = "second"
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array[3] = "third"
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alen = 3 # want the length? store in separate variable
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# or split a string
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plen = split("2 3 5 7 11 13 17 19 23 29", primes)
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clen = split("Ottawa;Washington DC;Mexico City", cities, ";")
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# retrieve an element
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print "The 6th prime number is " primes[6]
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# push an element
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cities[clen += 1] = "New York"
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dump("An array", array, alen)
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dump("Some primes", primes, plen)
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dump("A list of cities", cities, clen)
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}
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function dump(what, array, len, i) {
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print what;
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# iterate an array in order
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for (i = 1; i <= len; i++) {
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print " " i ": " array[i]
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}
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}
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