Shortest command to calculate the sum of a column of output on Unix?

Shortest command to calculate the sum of a column of output on Unix?

unix math shell ksh

unix

Date arithmetic in Unix shell scripts

unix shell date math scripting

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Floating-point arithmetic in UNIX shell script

shell unix math floating-point

unix

BASH: how to perform arithmetic on numbers in a pipe

linux bash unix shell math

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Converting unix timestamp to YYYY-MM-DD HH:MM:SS

c unix math timestamp

unix

Using math.h sqrt function in C [duplicate]

c unix math sqrt

unix

Getting Probabilities from a file of counts

unix math awk terminal

unix

I'm having trouble performing arithmetic expressions in UNIX

bash unix math

unix