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Calculate percentile in bash
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| #!/bin/bash | |
| # stdin should be integers, one per line. | |
| percentile=$1 | |
| tmp="$(tempfile)" | |
| total=$(sort -n | tee "$tmp" | wc -l) | |
| # (n + 99) / 100 with integers is effectively ceil(n/100) with floats | |
| count=$(((total * percentile + 99) / 100)) | |
| head -n $count "$tmp" | tail -n 1 | |
| rm "$tmp" |
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