![]() Index=bigdata | eval _dstpath=strftime(_time, "%Y%m%d/%H") "/" host | dump basefilename=MyExportĮxample 2: Export all events from index "bigdata" to the local disk with "MyExport" as the prefix of export filenames. Partitioning of the export data is achieved by eval preceding the dump command. See Define roles on the Splunk platform with capabilities.įor more information about risky commands, see SPL safeguards for risky commands.Įxample 1: Export all events from index "bigdata" to the location "YYYYmmdd/HH/host" at "$SPLUNK_HOME/var/run/splunk/dispatch//dump/" directory on local disk with "MyExport" as the prefix of export filenames. To use this command, you must have a role with the run_dump capability. If a raw event contains 'From: Susan To: Bob', then from. Examples for rex and regex-Example for REX-Extract 'from' and 'to' fields using regular expressions. ![]() so, as a beginner, if you are got confusion of which one to use 'rex or regex', normally you would required to use 'rex'. Regular expressions are used to perform pattern-matching and ‘search-and-replace’functions on text. regex is, generally less-required than rex. The dump command preserves the order of events as the events are received by the command.ĭump is considered to be a potentially risky command. Field Extraction on-the-fly A regular expression is an object that describes a pattern of characters. This command recognizes a special field in the input events, _dstpath, which if set is used as a path to be appended to the dst directory to compute the final destination path. This command exports events to a set of chunk files on local disk at "$SPLUNK_HOME/var/run/splunk/dispatch//dump". Default: raw rollsize Syntax: rollsize= Description: The minimum file size, in MB, at which point no more events are written to the file and it becomes a candidate for HDFS transfer. Default: 2 format Syntax: format= raw | csv | tsv | json | xml Description: The output data format. Specify a number from 0 to 9, where 0 means no compression and a higher number means more compression and slower writing speed. Optional arguments compress Syntax: compress= Description: The gzip compression level. The entire list must be enclosed in quotation marks. fields Syntax: fields= Description: A list of the fields to be exported. Syntaxĭump basefilename= fields= Required arguments basefilename Syntax: basefilename= Description: The prefix of the export filename. See SPL safeguards for risky commands in Securing the Splunk Platform. As a result, this command triggers SPL safeguards. This command is considered risky because, if used incorrectly, it can pose a security risk or potentially lose data when it runs. Seeįor Splunk Enterprise deployments, export search results to a set of chunk files on local disk.įor information about other export methods, see Export search results in the Search Manual. Here's an example:Įither method returns a field called ipclass that contains the class portion of the IP address.The dump command is an internal, unsupported, experimental command. ![]() You can use a forward slash ( / ), instead of quotation marks, to enclose the expression that contains a character class. You can escape the backslash character by adding another backslash, as shown in this example: You can specify the expression in one of two ways. However, the expression uses the character class \d. By default, this field will be used if no field argument is given. The following example starts with the makeresults command to create a field with a value: makeresults eval list'abcdefghijklmnopqrstuvwxyz'. You want to extract the IP class from the IP address. Here we are using the field of raw as the field to match on. To identify the position of certain values in a field, use the rex command with the offsetfield argument and a regular expression. In this example, the clientip field contains IP addresses. Regular expressions with character classes | rex field=ccnumber mode=sed "s/(\\d/XXXX-XXXX-XXXX-/g" 2. The \d must be escaped in the expression using a back slash ( \ ) character. In this example the first 3 sets of numbers for a credit card are masked. Use a to match the regex to a series of numbers and replace the numbers with an anonymized string to preserve privacy. To learn more about the rex command, see How the rex command works. The following are examples for using the SPL2 rex command.
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