32 lines
622 B
Awk
32 lines
622 B
Awk
#!/bin/awk -f
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# $NetBSD: median.awk,v 1.5 1997/10/04 16:31:32 christos Exp $
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/^ *[0-9]/ {
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# print out the median time to each hop along a route.
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tottime = 0; n = 0;
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for (f = 5; f <= NF; ++f) {
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if ($f == "ms") {
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++n
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time[n] = $(f - 1)
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}
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}
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if (n > 0) {
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# insertion sort the times to find the median
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for (i = 2; i <= n; ++i) {
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v = time[i]; j = i - 1;
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while (time[j] > v) {
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time[j+1] = time[j];
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j = j - 1;
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if (j < 0)
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break;
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}
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time[j+1] = v;
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}
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if (n > 1 && (n % 2) == 0)
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median = (time[n/2] + time[(n/2) + 1]) / 2
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else
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median = time[(n+1)/2]
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print $1, median
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}
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}
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