mean.awk


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### mean.awk
# find mean average of a list of numbers.

BEGIN {
    X = ARGV[1]
    inputsize = split(X, Xarr)
    Yarr[n] = 0
    SUM = 0
    for (m=1; m <= inputsize; m++) {
        SUM =+ Xarr[m]
    }
    print SUM
}