Splunk Search

Does SEDCMD use PCRE regular expressions?

gkanapathy
Splunk Employee
Splunk Employee

I know that in general, regular expressions in Splunk use PCRE (or a modified PCRE for matching in props.conf source stanza headings). If I set SEDCMD in props.conf, e.g.:

SEDCMD-example = s/regex/subst/g

is the regex also PCRE? Standard sed uses grep or egrep regexes, not PCRE, so this isn't entirely clear.

Tags (2)
1 Solution

Ledion_Bitincka
Splunk Employee
Splunk Employee

SEDCMD uses PCRE regex and thus is equivalent to sed -r

props.conf.spec
SEDCMD-<class> = <sed script>
....
* Syntax:
 * replace    - s/regex/replacement/flags
  * where regex is a perl regex (optionally containing capturing groups)
  * replacement is a string to replace the regex match, use \N for backreferences
  * flags can be either: g to replace all matches or a number to replace a specified match
 * substitute - y/string1/string2/
  * substitutes the string1[i] with string2[i]

View solution in original post

Ledion_Bitincka
Splunk Employee
Splunk Employee

SEDCMD uses PCRE regex and thus is equivalent to sed -r

props.conf.spec
SEDCMD-<class> = <sed script>
....
* Syntax:
 * replace    - s/regex/replacement/flags
  * where regex is a perl regex (optionally containing capturing groups)
  * replacement is a string to replace the regex match, use \N for backreferences
  * flags can be either: g to replace all matches or a number to replace a specified match
 * substitute - y/string1/string2/
  * substitutes the string1[i] with string2[i]
Get Updates on the Splunk Community!

Splunk Observability for AI

Don’t miss out on an exciting Tech Talk on Splunk Observability for AI!Discover how Splunk’s agentic AI ...

Splunk Enterprise Security 8.x: The Essential Upgrade for Threat Detection, ...

Watch On Demand the Tech Talk, and empower your SOC to reach new heights! Duration: 1 hour  Prepare to ...

Splunk Observability as Code: From Zero to Dashboard

For the details on what Self-Service Observability and Observability as Code is, we have some awesome content ...