電訊茶室 » VoIP 研究室 » Asterisk » cron job to detect dongle status

mcdull 發表於 2017-10-13 00:39

cron job to detect dongle status

用左 3G dongle 幾個月..
發現, 佢隔一排, 可能兩三日就detect唔到枝usb..
重點係..... 我根本唔知.

而家想寫個cron job check下枝dongle仲係咪online, 唔係的話就email我同reboot.

但係 asterisk -rx "dongle show devices" | grep Free | grep dongle0
係我用root既console可以正常return value..
但係放左入cron job 就完全冇return..

點解呢....

角色 發表於 2017-10-13 09:38

是否cron的command和root的rw权限不一样？

mcdull 發表於 2017-10-13 11:03

[quote]是否cron的command和root的rw权限不一样？
[size=2][color=#999999]角色 發表於 2017-10-13 09:38[/color] [url=http://www.telecom-cafe.com/forum/redirect.php?goto=findpost&pid=43822&ptid=7041][img]http://www.telecom-cafe.com/forum/images/common/back.gif[/img][/url][/size][/quote]


    cron job 已經係用root行.

sudo crontab -e
我成個console都係root. 用緊 Freepbx

不過我個cron issue reboot command 佢都冇理我. 我都唔知點解

ttmuskie 發表於 2017-10-15 21:02

Only reboot not work? How about the email?

mcdull 發表於 2017-10-16 09:17

[quote]Only reboot not work? How about the email?
[size=2][color=#999999]ttmuskie 發表於 2017-10-15 21:02[/color] [url=http://www.telecom-cafe.com/forum/redirect.php?goto=findpost&pid=43824&ptid=7041][img]http://www.telecom-cafe.com/forum/images/common/back.gif[/img][/url][/size][/quote]

Email works. But asterisk -rx returns nothing, so it keeps warning me that my dongle disconnects.

ttmuskie 發表於 2017-10-16 12:30

Try to specify the full path for the asterisk (i.e. /usr/sbin/asterisk) to see if it make any difference.

mcdull 發表於 2017-10-17 23:13

[quote]Try to specify the full path for the asterisk (i.e. /usr/sbin/asterisk) to see if it make any differ ...
[size=2][color=#999999]ttmuskie 發表於 2017-10-16 12:30[/color] [url=http://www.telecom-cafe.com/forum/redirect.php?goto=findpost&pid=43826&ptid=7041][img]http://www.telecom-cafe.com/forum/images/common/back.gif[/img][/url][/size][/quote]


    did it already.  it doesn't return any error message. Just empty string.

ttmuskie 發表於 2017-10-20 09:38

[i=s] 本帖最後由 ttmuskie 於 2017-10-20 09:40 編輯 [/i]

I put this under my "sudo crontab -e":[code]
*/5  *      *        *   *  /usr/sbin/asterisk -rx "dongle show devices" | grep Free | grep dongle0 | tee /tmp/tbd.txt
[/code]And the result:[code]
cat /tmp/tbd.txt
dongle0      0     Free       8    0    0       PCCW-HKT       E180       11.126.13.00.380  354241028919407  454196220366839  Unknown
[/code]

mcdull 發表於 2017-10-22 04:16

隔左幾日, 無端端又會得左.....

mcdull 發表於 2017-11-20 10:24

[code]#!/bin/sh

#check if chan_dongle is actually loaded or quit
checkchan=`/usr/sbin/asterisk -rx "dongle show devices" | grep dongle`
if [[ $checkchan ]]; then
   echo "`date`"
   echo "chan_dongle is up and running"
   echo "$checkchan"
else
   echo "`date`"
   echo "chan_dongle has not been loaded, wait for next cronjob"
   exit 0
fi

line=`/usr/sbin/asterisk -rx "dongle show devices" | grep +852XXXXXXXX | grep Free`
deb=`/usr/sbin/asterisk -rx "dongle show devices"`
if [[ $line ]]; then
   echo "Hello Card is working fine"
   echo "$line"
else
   echo "GSM down. Rechecking in 2 minute"
   sleep 2m
   line=`/usr/sbin/asterisk -rx 'dongle show devices' | grep +852XXXXXXXX | grep Free`
   if [[ $line ]]; then
      echo "Hello Card is working fine Now"
      echo "$line"
      exit 0
   else
      echo "GSM down. Rebooting in 1 minute"
      echo $deb | mailx -s 'GSM unresponsive. System Reboot in progress' -r 'xxx@xxx.com' -S smtp='xxx.xxx.xxx.xxx' xxx@xxx.com
      /usr/sbin/shutdown -r 1
   fi
fi
exit 0
[/code]

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