Linux中awk命令正确的求最大值、最小值、平均值、总和 |
您所在的位置:网站首页 › shell 取最大值 › Linux中awk命令正确的求最大值、最小值、平均值、总和 |
test.txt文件内容: 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(错误的求法): cat test.txt|awk 'BEGIN {max = 0} {if ($1>max) max=$1 fi} END {print "Max=", max}' Max= 9求最小值(错误的求法): cat test.txt|awk 'BEGIN{min = 65536}{if ($1max+0) max=$1 fi} END {print "Max=", max}' Max= 118求最小值(正确的求法): cat test.txt|awk 'BEGIN{min = 65536}{if ($1+0 |
今日新闻 |
推荐新闻 |
CopyRight 2018-2019 办公设备维修网 版权所有 豫ICP备15022753号-3 |