![]() When using a I-J/N range and interval format, the interval N is applied to the first number in the range. This syntax isn't compatible with every system The following minute field values are used: If a number in the range is outside of the interval N, the value resets to 0.įor example, */9 * * * * means "every nine minutes" starting with minute 0 within an hour. In cron expressions with an interval of /N, all values in the specified range that are intervals of N are used. ![]() This would look like * 9-12/1,15-17/1 * * *Īn alert would run every minute of every hour from 9:00 AM through 12:00 PM and every minute of every hour from 3:00 PM through 5:00 PM. Splunk offers two commands ( rex and regex) in SPL that allow Splunk analysts to utilize regular expressions in order to assign values to new fields or narrow results on the fly as part of their search. How can I extract duration with below condition (it is important to check these condition to find correct match) 1)AA+10. Multiple comma-separated ranges and /N intervalĮach value in this field that is an interval of /N and is within the specified ranges If this reply helps you, Karma would be appreciated. The following format options are available.Īll values in each of these ranges, including the range start and end values.įor example: 9-12,15-17 Would look like * 9-12,15-17 * * *Īn alert would run at every minute from 9:00 AM through 12:00 PMĮach value in this field that is an interval of /N and is within this rangeĪn alert would be sent every minute past every 2nd hour from 9:00 AM through 12:00 PM To find multiple matches of a string with the rex command, use the maxmatchn option. In some cases, you might want to use multiple value ranges or combine ranges and an interval in a cron expression. The following cron field formats suit most use cases.Īll values in this range, including the range start and end valuesĪll values in this field are intervals of NĬron field formats for ranges and intervals Day of the week: 0-6 (where 0 = Sunday).This can be verified or changed by going to Settings > Searches, reports, and alerts > Scheduled time.Ī cron expression is a data string of five fields separated by spaces.įrom left to right, the five cron fields have the following chronological value ranges: If the part 'Result' is a first-level key, Splunk would have given you fields like Results.Message (which contains the information you are trying to parse), Results.Elapsed, Results.TraceLevel. ![]() Examples use the tutorial data from Splunk. For the regex command see Rex Command Examples. The Splunk cron analyzer defaults to the timezone where the search head is configured. That is the key to solving a data problem, regex or not. Rex vs regex Extract match to new field Character classes This post is about the rex command. You can customize alert scheduling using a time range and cron expression. Use cron expressions for alert scheduling
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