Linux操作系统基础

Question

编写she11脚本命名为sum.sh，放在主文件夹下

功能为：计算1-999中所有奇数的和，并输出结果

Answer 1

#!/bin/sh
sum=0
for i in `seq 1 999`
do 
  t=$((i%2))
  if [ $t == 1 ];then
    sum=$((sum+i))
  fi
done
echo ${sum}  #250000