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
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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
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