通过 ssh 和 cron（sshpass、expect 或其他解决方案）自动重启 ip-phone

Question

任务是每晚远程重启 ip-phones。

sshpass:
sshpass -p 12345678 ssh -o StrictHostKeyChecking=no admin@192.168.2.1 reboot
作为回应：到 192.168.2.1 的连接已被远程主机关闭。
此外，电话在 CLI 中像往常一样要求回答 y。

预期：

COMM="
log_file debug.log
exp_internal 1
set timeout 5
spawn ssh admin@192.168.2.1
expect \"password:\"
send \"12345678\r\"
sleep 5
expect \"*>\"
send \"reboot\r\"
sleep 5
expect \"*y/N*\"
send \"y\r\"
expect eof
"
expect -c "$COMM"

当我自己从控制台执行此操作时，一切正常。使用cron，在debug.log中，由于某种原因，在设备上授权后，没有出现输入expect \"*>\"命令的行。即使我们删除 expect \"*>\" 并仅使用 send，也没有任何反应。
我寻求解决问题的提示或提出其他解决方案。谢谢。

控制台和 cron 之间的 debug.log 不同
控制台：

expect: does " \r\n" (spawn_id exp5) match glob pattern "*>"? no
^[[1;36m

expect: does " \r\n\u001b[1;36m\r\n\t" (spawn_id exp5) match glob pattern "*>"? no
Grandstream GXV3240 Command-Line Interface Copyright 2017
                Grandstream Networks, Inc.
^[[0m
GXV3240>
expect: does " \r\n\u001b[1;36m\r\n\tGrandstream GXV3240 Command-Line Interface Copyright 2017\r\n\t\tGrandstream Networks, Inc.\r\n\u001b[0m\r\nGXV3240> " (spawn_id exp5) match glob pattern "*>"? yes
expect: set expect_out(0,string) " \r\n\u001b[1;36m\r\n\tGrandstream GXV3240 Command-Line Interface Copyright 2017\r\n\t\tGrandstream Networks, Inc.\r\n\u001b[0m\r\nGXV3240>"
expect: set expect_out(spawn_id) "exp5"
expect: set expect_out(buffer) " \r\n\u001b[1;36m\r\n\tGrandstream GXV3240 Command-Line Interface Copyright 2017\r\n\t\tGrandstream Networks, Inc.\r\n\u001b[0m\r\nGXV3240>"
send: sending "reboot\r" to { exp5 }

cron：

expect: does " " (spawn_id exp4) match glob pattern "*>"? no

^[[1;36m
        Grandstream GXV3240 Command-Line Interface Copyright 2017
                Grandstream Networks, Inc.
^[[0m
^[[6n
expect: does " \r\n\u001b[1;36m\r\n\tGrandstream GXV3240 Command-Line Interface Copyright 2017\r\n\t\tGrandstream Networks, Inc.\r\n\u001b[0m\r\n\u001b[6n" (spawn_id exp4) match glob pattern "*>"? no
expect: timed out
send: sending "reboot\r" to { exp4 }

expect: does " \r\n\u001b[1;36m\r\n\tGrandstream GXV3240 Command-Line Interface Copyright 2017\r\n\t\tGrandstream Networks, Inc.\r\n\u001b[0m\r\n\u001b[6n" (spawn_id exp4) match glob pattern "*y/N*"? no
expect: timed out

Answer 1

我不知道这是否能解决您的问题：没有看到调试输出就不可能说出来。

当您将期望代码嵌入到 shell 脚本中时，我建议使用 heredoc -- 这使得引用更加简单

expect <<'END_EXPECT'

    log_file debug.log
    exp_internal 1
    set timeout 10
    spawn ssh admin@192.168.2.1
    expect "password:"
    send "12345678\r"
    expect "*>"
    send "reboot\r"
    expect "y/N"
    send "y\r"
    expect eof

END_EXPECT

我增加了超时并删除了睡眠——如果你有正确的模式，通常在期望脚本中不需要睡眠。

Answer 2

重启潮流VoIP终端-脚本解决方案：

#!/bin/bash
ip_adr="192.168.0.2"
pass="admin"
sshpass -p ${pass} ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no admin@${ip_adr} << EOF
reboot
exit
EOF
unset pass