gettopfamily.sh

shell 简单例程,含数学计算IP获取awk例程字数统计示例

#!/bin/bash
# gettopfamily.sh

[ $# -lt 1 ] && echo "please input the file who store the income data" && exit -1
[ ! -f $1 ] && echo "$1 is not a file" && exit -1

income=$1
awk '{
	printf("%d %0.2f\n", $1, $3/$2);
}' $income | sort -k 2 -n -r