Unix find average file size

unix size

To calculate the average file size within a directory on a Linux system, following command can be used:

ls -l | gawk '{sum += $5; n++;} END {print sum/n;}'

unix size

A short, general and recursion-friendly variation of Ernstsson's answer:

find ./ -ls | awk '{sum += $7; n++;} END {print sum/n;}'

Or, for example, if you want to impede files above 100 KB from stewing the average:

find ./ -size -100000c -ls | awk '{sum += $7; n++;} END {print sum/n;}'

unix size

Use wc -c * to get the size of all the files and ls | wc -l to get the number of files. Then just divide one by the other.

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