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Full Discussion: Grep a log file for the last 5 minutes of contents every 5 minutes
Top Forums Shell Programming and Scripting Grep a log file for the last 5 minutes of contents every 5 minutes Post 303030331 by charli1 on Friday 8th of February 2019 06:09:47 AM
Old 02-08-2019
Grep a log file for the last 5 minutes of contents every 5 minutes
Hi all,
System Ubuntu 16.04.3 LTS
i have the following log
Code:
INFO     2019-02-07 15:13:31,099 module.py:700] default: "POST /join/8550614e-3e94-4fa5-9ab2-135eefa69c1b HTTP/1.0" 500 2042
INFO     2019-02-07 15:13:31,569 module.py:700] default: "POST /join/6cb9c452-dcb1-45f3-bcca-e33f5d450105 HTTP/1.0" 500 2042
INFO     2019-02-07 15:14:25,379 module.py:700] default: "POST /join/f30c767d-fcd2-44c2-83a9-d927fv10f7a8 HTTP/1.0" 500 2042
INFO     2019-02-07 15:14:46,531 module.py:700] default: "POST /join/57e7930c-99ea-419a-b807-fad6327cd6e9 HTTP/1.0" 500 2042
INFO     2019-02-07 15:15:06,966 module.py:700] default: "POST /join/57e7930c-99ea-419a-b807-fad6447cd6e9 HTTP/1.0" 500 2042
INFO     2019-02-07 15:15:06,966 module.py:700] default: "POST /join/57e793rfc-98ea-418a-b817-fad6347cd6e9 HTTP/1.0" 500 2042

i need to create a monitor for this log and grep only last 5 minutes of this log HTTP/1.0" 500 2042, and make an action if the match count is higher then 5 in last 5 minutes.

I tyied the following script but for some reason i can't get it working


Code:
#!/bin/bash
#
check=$(awk -v d1="$(date --date="-5 min" "+%Y-%m-%d %H:%M:%S,%3N")" -v d2="$(date "+%Y-%m-%d %H:%M:%S,%3N")" '$0 > d1 && $0 < d2 || $0 ~ d2' /var/log/messages | grep -i "HTTP/1.0" 500 2042")
count=$(awk -v d1="$(date --date="-5 min" "+%Y-%m-%d %H:%M:%S,%3N")" -v d2="$(date "+%Y-%m-%d %H:%M:%S,%3N")" '$0 > d1 && $0 < d2 || $0 ~ d2' /var/log/messages | grep -ci "HTTP/1.0" 500 2042") 
if [ $count -gt 5 ] 
then
   echo $CHECK | /bin/mail -s "$count occurrences of the error message has been found in the last 5 minutes" myemail@mydomain.com 
else
   echo "Exit, everything is ok" > /dev/null
fi

The error i gues is with grep because there are the " in the middle.
Could somebody help me on this what i'm i missing here?
Thank you in advance.
Last edited by charli1; 02-08-2019 at 08:06 AM..
 

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LEARN ABOUT DEBIAN

bbmessage.cgi

BBMESSAGE.CGI(8)					      System Manager's Manual						  BBMESSAGE.CGI(8)

NAME

       bbmessage.cgi - CGI utility used for proxying Xymon data over HTTP

SYNOPSIS

       bbmessage.cgi

DESCRIPTION

       bbmessage.cgi(8)  is the server-side utility receiving Xymon messages sent by the bb(1) utility over an HTTP transport. The bb utility nor-
       mally sends data over a dedicated TCP protocol, but it may use HTTP to go through proxies or through restrictive firewalls. In  that  case,
       the  webserver  must  have this CGI utility installed, which takes care of receiving the message via HTTP, and forwards it to a local Xymon
       server through the normal Xymon transport.

       The CGI expects to be invoked from an HTTP "POST" request, with the POST-data being the status-message.	bbmessage.cgi simply collects  all
       of  the	POST  data,  and  send	it  off  as a message to the Xymon daemon running on IP 127.0.0.1. This destination IP currently cannot be
       changed.

       The CGI will return any output provided by the Xymon daemon back to the requestor as the response to the HTTP POST, so this allows for  all
       normal Xymon commands to work.

SECURITY

       bbmesage.cgi will only send data to a Xymon server through the loopback interface, i.e. IP-address 127.0.0.1.

       Access  to  the	CGI  should  be  restricted through webserver access controls, since the CGI provides no authentication at all to validate
       incoming messages.

       If possible, consider using the bbproxy(8) utility instead for native proxying of Xymon data between networks.

SEE ALSO

       bb(1), bbproxy(8), xymon(7)

Xymon							    Version 4.2.3:  4 Feb 2009						  BBMESSAGE.CGI(8)
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