Scripts for computing the average of a list of numbers in a data file

The file data.txt contains the following:

1.00 1.23 54.4 213.2 3.4

The output of the scripts are supposed to be:

ave: 54.646

Some simple scripts are preferred.

Solution

Here is one method:

$ awk '{s+=$1}END{print "ave:",s/NR}' RS=" " file
ave: 54.646

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