test.txt文件内容
9
11
35
21
42
118
awk求值方法:
#求最大值:
awk 'BEGIN {max = 0} {if ($1+0 > max+0) max=$1} END {print "Max=", max}' test.txt
Max= 118
#求最小值:
awk 'BEGIN {min = 65536} {if ($1+0 < min+0) min=$1} END {print "Min=", min}' test.txt
Min= 9
#求和:
cat test.txt|awk '{sum+=$1} END {print "Sum= ", sum}'
Sum= 236
#求平均值:
cat test.txt|awk '{sum+=$1} END {print "Avg= ", sum/NR}'
Avg= 39.3333
#求最大值方法2:
cat test.txt|awk 'BEGIN {max = 0} {if ($1+0>max+0) max=$1 fi} END {print "Max=", max}'
Max= 118
#求最小值方法2:
cat test.txt|awk 'BEGIN{min = 65536}{if ($1+0<min+0) min=$1 fi}END{print "Min=", min}'
Min= 9
Reference:
https://blog.csdn.net/fireblue1990/article/details/51622416