calculating the mean of a column 1

tini1208 · Oct 18, 2007

hi everybody,

is there a short command, to caculate the mean of a column?

thanks,
tini

feherke · Oct 18, 2007

Hi

If you mean arithmetic mean, then is quite simple :

Code:

awk 'NF{s+=$1;c++}END{print s/c}' /input/file

For example if you want the average file size in a directory :

Code:

ls -l | awk 'NF>=5{s+=$5;c++}END{print s/c}'

Feherke.

tini1208 · Oct 18, 2007

hi feherke,

thanks a lot for your quick answer!!!!!!

cheers, tini