Cron Logs

Cron job logs is one of the popularly used time-based job scheduling software and OpManager Nexus AppLogs is a cloud monitoring service that facilitates easy and efficient log management. With OpManager Nexus AppLogs you can quickly search for Cron job data which has been sorted into relevant fields such as Cron daemon, host, date & time, user, PID, command, etc. all of which is shown in a single dashboard.  Learn more about log management with OpManager Nexus.

Getting started

  1. Log in to your OpManager Nexus account. 
  2. Download and install the OpManager Nexus Server Monitoring agent (Linux). 
  3. Go to Admin > AppLogs > Log Profile and Add Log Profile.

Logs file path

Each application writes logs in different folders and files. By default Cron logs are sourced from the below mentioned folder path for the respective OS. If you have logs in a different folder, you can mention it under the File Path to source them from that particular folder while creating a log profile.

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:
/var/log/cron*

Log pattern

$DateTime:date$ $Host$ $CronDeamon$[$PID$]:! ($User$)! $Command$

This is the default pattern defined by OpManager Nexus AppLogs for parsing Cron logs based on the sample mentioned below.

Sample log

Jul  8 22:00:00 dev-db crond[18340]: (root) CMD (/bin/sh /home/root/bin/system_check &)

The above sample log can be separated into 6 fields, each of which will take its respective value from here and will then be uploaded to OpManager Nexus.

Field name Field value
Date Time Jul  8 22:00:00
Host dev-db
Cron Deamon crond[18340]
PID root
User CMD
Command (/bin/sh /home/root/bin/system_check &)

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