10个参数，输出最大值
```shell
#!/bin/bash
if [ $# -lt 10 ];then
  exit 1
else
   temp=0
   while [ -n "$1" ];do
    if [[ $temp -gt $1 ]];then
      temp=$temp
    else
      temp=$1
    fi
   shift 
  done
fi
echo $temp
```