awk统计命令

1、求和

cat data|awk '{sum+=$1} END {print "Sum = ", sum}'

2、求平均

cat data|awk '{sum+=$1} END {print "Average = ", sum/NR}'

3、求最大值

cat data|awk 'BEGIN {max = 0} {if ($1>max) max=$1 fi} END {print "Max=", max}'

4、求最小值(min的初始值设置一个超大数即可)

awk 'BEGIN {min = 1999999} {if ($1<min) min=$1 fi} END {print "Min=", min}'

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