judge_user_passwd.sh
#!/bin/bash
read -p "Please input username:" user
read -p "Please input password:" pass
if [ "$user" == 'ztj' -a "$pass" == '123456' ];then
echo "Login Successful"
else
echo "Login Failed"
fi验证：
[root@logstash ~]# sh judge_user_passwd.sh
Please input username:a
Please input password:b
Login Failed
[root@logstash ~]# sh judge_user_passwd.sh
Please input username:ztj
Please input password:123456
Login Successful
[root@logstash ~]#
