模拟用户登录的操作

# /bin/bash

echo -n login:
read name
echo -n password:
read passwd

if [ $name = "chat" -a $passwd = "abc" ]; then
  echo "the host and passwdrd is right!"
else
  echo "input is error!"
fi

#end

注意：if语句的格式： if [space judge_condition space]; then