I wrote a tool that reads numbers from stdin and outputs the percentile statistics of those numbers.

https://github.com/zdwolfe/zstat

https://pypi.org/project/zstat-cli/

    $ cat nums.txt
    456
    366
    695
    773
    ...

    $ cat nums.txt | zstat
    p0      =       56
    p50     =       366
    p90     =       773
    p95     =       773
    p99     =       826
    p99.9   =       826
    p100    =       826