Bash 脚本可以知道我的电话分机何时无法访问？

Question

无论如何编写一个bash，当我的电话分机无法访问时，它可以通过电子邮件通知我？

输出来自 /var/log/asterisk/full

[Nov 15 13:25:16] NOTICE[7884] chan_sip.c: Peer '7778' is now UNREACHABLE!  Last qualify: 17
[Nov 15 13:25:17] NOTICE[7884] chan_sip.c: Peer '7169' is now UNREACHABLE!  Last qualify: 17
[Nov 15 13:25:17] NOTICE[7884] chan_sip.c: Peer '7176' is now UNREACHABLE!  Last qualify: 18
[Nov 15 13:25:18] NOTICE[7884] chan_sip.c: Peer '7771' is now UNREACHABLE!  Last qualify: 14
[Nov 15 13:25:18] NOTICE[7884] chan_sip.c: Peer '7606' is now UNREACHABLE!  Last qualify: 17
[Nov 15 13:25:18] NOTICE[7884] chan_sip.c: Peer '7773' is now UNREACHABLE!  Last qualify: 14
[Nov 15 13:25:19] NOTICE[7884] chan_sip.c: Peer '7125' is now UNREACHABLE!  Last qualify: 15
[Nov 15 13:25:20] NOTICE[7884] chan_sip.c: Peer '7772' is now UNREACHABLE!  Last qualify: 15
[Nov 15 13:25:22] NOTICE[7884] chan_sip.c: Peer '7605' is now UNREACHABLE!  Last qualify: 16
[Nov 15 13:25:22] NOTICE[7884] chan_sip.c: Peer '7183' is now UNREACHABLE!  Last qualify: 18
[Nov 15 13:25:29] NOTICE[7884] chan_sip.c: Peer '7601' is now UNREACHABLE!  Last qualify: 24
[Nov 15 13:25:30] NOTICE[7884] chan_sip.c: Peer '7776' is now UNREACHABLE!  Last qualify: 47
[Nov 15 13:25:32] NOTICE[7884] chan_sip.c: Peer '7604' is now UNREACHABLE!  Last qualify: 25
[Nov 15 13:25:34] NOTICE[7884] chan_sip.c: Peer '7774' is now UNREACHABLE!  Last qualify: 46
[Nov 15 13:25:38] NOTICE[7884] chan_sip.c: Peer '7770' is now UNREACHABLE!  Last qualify: 41
[Nov 15 13:25:41] NOTICE[7884] chan_sip.c: Peer '7775' is now UNREACHABLE!  Last qualify: 42

如您所见，直到人们抱怨无法拨打电话时，我才知道电话已停机。

到目前为止我做了什么：

#!/bin/bash

email="myemail@mydomain.com"

offlineExtensions=$(cat /var/log/asterisk/full | grep -i unreachable)


if [ "$offlineExtensions" ]
then
printf 'Extensions that are currently offline...\n''\n'"$offlineExtensions" | mail -s 'Extensions OFFLINE' "$email"
fi

我想使用sedand awk，但我是 bash 脚本的新手。

如果此脚本不断检查Asterisk log file以找出扩展是否无法访问，那就太好了。

Answer 1

不看日志，asterisk直接问哪个扩展不行

asterisk -rx 'sip show peers like ^[0-9]{4}$' | awk 'NR>1 && !/ OK /'

将报告不是“OK”的 4 位扩展名。