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Full Discussion: Collect last 2 days data from /var/log/messages
Top Forums Shell Programming and Scripting Collect last 2 days data from /var/log/messages Post 302897484 by makauser on Monday 14th of April 2014 10:59:27 AM
Old 04-14-2014
Collect last 2 days data from /var/log/messages
I need to collect last 2 days data from /var/log/messages into a separate file (file format: flmessagetimedaymonth). I have collect today's month, date, time information in separate variable. Please help me in this issue (Probably need awk and grep function).

Code:
month=$(date|awk '{print $2}')
day=$(date|awk '{print $3}')
time=$(date|awk '{print $4}')

#nday=$((day-1))

echo $month $day $time

i=2

#for i in 2 1 0



Sample of /var/log/messages
Code:
Apr 12 12:02:35 RH6 kernel: imklog 4.6.2, log source = /proc/kmsg started.
Apr  12 12:02:35 RH6 rsyslogd: [origin software="rsyslogd" swVersion="4.6.2"  x-pid="1261" x-info="http://www.rsyslog.com"] (re)start
Apr 14 19:14:55 RH6 kernel: imklog 4.6.2, log source = /proc/kmsg started.
Apr 14 19:14:55 RH6 rsyslogd: [origin software="rsyslogd" swVersion="4.6.2" x-pid="1261" x-info="http://www.rsyslog.com"] (re)start

Last edited by vbe; 04-14-2014 at 12:24 PM.. Reason: using code tags means putting between the tags....
 

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LEARN ABOUT CENTOS

pmdarsyslog

PMDARSYSLOG(1)						       Performance Co-Pilot						    PMDARSYSLOG(1)

NAME

       pmdarsyslog - rsyslog (reliable and extended syslog) PMDA

DESCRIPTION

       pmdarsyslog is a Performance Metrics Domain Agent (PMDA) which exports metric values from the rsyslogd(8) server.  Further details about
       rsyslog can be found at http://www.rsyslog.com/.

INSTALLATION

       If you want access to the names and values for the rsyslog performance metrics, do the following as root:

	       # cd $PCP_PMDAS_DIR/rsyslog
	       # ./Install

       If you want to undo the installation, do the following as root:

	       # cd $PCP_PMDAS_DIR/rsyslog
	       # ./Remove

       pmdarsyslog is launched by pmcd(1) and should never be executed directly.  The Install and Remove scripts notify pmcd(1) when the agent is
       installed or removed.

       In order to use this agent, rsyslog stats gathering must be enabled.  This is done by adding the lines:

	       $ModLoad impstats
	       $PStatsInterval 5       # log every 5 seconds
	       syslog.info	       |/var/log/pcp/rsyslog/stats

       to your rsyslog.conf(5) configuration file after installing the PMDA.  Take care to ensure the syslog.info messages do not get logged in
       any other file, as this could unexpectedly fill your filesystem.  Syntax useful for this is syslog.!=info for explicitly excluding these.

FILES

       /var/log/pcp/rsyslog/stats
	   named pipe containing statistics exported from rsyslog, usually created by the PMDA Install script.

       $PCP_PMDAS_DIR/rsyslog/Install
	   installation script for the pmdarsyslog agent

       $PCP_PMDAS_DIR/rsyslog/Remove
	   undo installation script for the pmdarsyslog agent

       $PCP_LOG_DIR/pmcd/rsyslog.log
	   default log file for error messages from pmdarsyslog

SEE ALSO

       pmcd(1), rsyslog.conf(5), rsyslogd(8).

3.8.10							       Performance Co-Pilot						    PMDARSYSLOG(1)
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