摘要：1, get column: cat *.csv | cut -d , -f 2 > value 2, average cat value | awk '{sum+=$1} END {print "Average= ",sum/NR}' 阅读全文

摘要：https://gist.github.com/bigaidream/40fe0f8267a80e7c9cf8 http://121.42.47.99/yuenshome/wordpress/?p=2607#more-2607 阅读全文