sitemassive.blogg.se - Splunk commands

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The Forwarder (optional) sends data from a source.

The Indexer parses and indexes data added to Splunk.

Splunk contains three processing components: Splunk Enterprise search results on sample data With Splunk, not only is it easier for users to excavate and analyze machine-generated data, but it also visualizes and creates reports on such data. it will fetch the txn-id which startswith "request-in" and endswith "request-out" and further it will discard all the events in which either of the value is missing.The Internet of Things (IoT) and Internet of Bodies (IoB) generate much data, and searching for a needle of datum in such a haystack can be daunting. TRANSACTION: This command helps to merge events into a single event based upon a common identifier, below command will create events based on two events i.e. TABLE: This command helps to format the results into tabular output.

Example: | replace fetchReport with Report, viewReport with Report in serviceType.

REPLACE: This command helps to replace the values of fields with another value, below command will replace the values "fetchReport" and "viewReport" as "Report" in "serviceType' field.

Example: | rename service AS serviceType, RC AS responseCode.

RENAME: This command helps to rename field(s), below command will rename a field named as service to serviceType and RC as responseCode

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The output will be something like: viewReport have a response code of 200įIELDS: This command helps to keep or remove specified fields from the search results, below command will keep just three fields in your search result.Let's say you want to create a new filed and concatenate results of multiple fields and bring them to your newly created field, below command will create a new field called "Output" and will have the value of two fields "request" and "RC" in addition to that some normal static text. of the response code is equals to 200 it will mark it as OK otherwise for all other response code it will mark it as Error. Lets say you want to add a new field, for doing so you can use something like given below, it command will create a new field based on the IF condition i.e. There are multiple different functions available for eval command. Example: | sendemail subject="Test " sendpdf=true priority=highest message="Please find attached latest search result" sendresults=trueĭEDUP: This command helps de-duplicate the results based upon specified fields, keeping the most recent match.ĮVAL: This command helps to evaluate new or existing fields and their values.

the results, set the priority of the email, give a message i.e. For instance to whom you want to send the email, if you want to keep anyone in cc/bcc, change the subject line (by default its "Splunk Results"), sendpdf(true or false) i.e. you just need to pass a couple of values to it. SENDEMAIL: This command helps you to send an email straight away from the search head itself.

Another thing to notice is useother, this option specifies whether to merge all of the values which are not included in the results into a single new value called OTHER, accepted values t(true) or f(false).

In this case, each bar(or line chart) in the bar graph will be of 5 mins.

If you will notice, there is something called span (length of time for which the statistics are considered).

Above query will help to create a timechart with respect to a specific field(it this case its action) from the events.

Example: index=_audit | timechart span=5m count by action useother=f.

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TIMECHART: Helps you to create a time series chart with respect to event statistics. The output will be something like this $98,622.96.Above example is converting the value which is there in "avg_revenue" to a string which consists of '$' and 'commas'.Example: | eval "Average Revenue" = " $" + tostring(avg_revenue, " commas").let's say if the input value is a number, it re-formats and changes it to a string, on the other hand, lets say if the input value is boolean, it returns either "True" or "False".

TOSTRING: Helps to convert an input value to a string. Round the value down to the nearest whole integer.Īpart from this, there are other functions as well which are used by eval command, for instance, pi(), sqrt() etc.Example: | eval Average= floor(Average).Give the output with the maximum possible number of decimal values.Example: | eval Average= exact(Average).Round the value up to the next highest integer.