Expect+Crontab 定时重启山石防火墙

expect

安装expect

yum install expect

expect说明

shell脚本

存储位置/usr/etc/script/test.sh

#!/usr/bin/expect -f
spawn ssh [YOUR_USER_NAME]@[YOUR_DEVICE_IP]
        expect {
                "(yes/no)"      {send "yes\r";exp_continue}
                "*password:"    {send -- "[YOUR_PASSWORD]\r"}
        }
        expect "*#"
        send "show ip route\r"
        expect "*More*"
        send "a"
        expect "*#"
        send "reboot\r"
        expect {
                "*System configuration has been modified*"
                        {send "y\r";exp_continue}
                "*System reboot, are you sure?*"
                        {send "y\r";exp_continue}
                "*Please choose one:*"
                        {send "a"}
        }
        set timeout 60

        expect eof

exit

Crontab

检查Crontab状态

[root@MiWiFi-R1CM-srv script]# systemctl status crond.service 
● crond.service - Command Scheduler
   Loaded: loaded (/usr/lib/systemd/system/crond.service; enabled; vendor preset: enabled)
   Active: active (running) since 二 2021-11-09 12:03:58 CST; 2min 31s ago
 Main PID: 20411 (crond)
    Tasks: 1
   Memory: 1.3M
   CGroup: /system.slice/crond.service
           └─20411 /usr/sbin/crond -n

11月 09 12:03:58 MiWiFi-R1CM-srv systemd[1]: Started Command Scheduler.
11月 09 12:03:58 MiWiFi-R1CM-srv systemd[1]: Starting Command Scheduler...
11月 09 12:03:58 MiWiFi-R1CM-srv crond[20411]: (CRON) INFO (RANDOM_DELAY will be scaled with factor...d.)
11月 09 12:03:58 MiWiFi-R1CM-srv crond[20411]: (CRON) INFO (running with inotify support)
11月 09 12:03:58 MiWiFi-R1CM-srv crond[20411]: (CRON) INFO (@reboot jobs will be run at computer's ...p.)
11月 09 12:05:01 MiWiFi-R1CM-srv crond[20411]: (root) RELOAD (/var/spool/cron/root)
Hint: Some lines were ellipsized, use -l to show in full.

增加Crontab任务

crontab -e
6 12 9 * * /usr/bin/expect -f /usr/etc/script/test.sh

备注

expect特殊字符转义

1. expect需要转义的字符串

	1、   \ 需转义为 \\
	2、   } 需转义为 \}
	3、   [ 需转义为 \[
	4、   $ 需转义为 \$
	5、    ' 需转义为 \'
	6、    " 需转义为 \\"

2. send转义
   在特殊字符前加\完成转义