topic Re: Extract file name from path's for both windows and nix format in Splunk Search

How to extract file name from path's for both windows and nix format?

att35 — Mon, 17 Apr 2023 20:20:07 GMT

Hi,

We have a data source containing File Path's from both Windows and Linux formats. Applying regex separately works but how can I extract all file names regardless of format in a single search?

Following works for all Windows path's but for Linux, entire path gets extracted as file_name

| rex field=file_path "(?P<file_name>[^\\\]+)$"

whereas this one works for Linux but does nothing on the Windows path.

| rex field=file_path ".*\/(?<file_name>.*)$"

Is there a way to use both in same search? or a new regex that would work on either of the two formats?

Re: Extract file name from path's for both windows and nix format

richgalloway — Mon, 17 Apr 2023 17:03:14 GMT

This regex works in my limited testing.

| rex field=file_path "(?<file_name>[^\/\\]+)$"

Re: Extract file name from path's for both windows and nix format

rut — Mon, 17 Apr 2023 17:14:04 GMT

| rex field=file_path "(?<file_name>[^\/\\\]+\..+)$"

Negation for / and \, match everything that has at least one dot. Tested on:

C:\test\test.tst
/test/test/test.tst
/test/test/test.tst.tst

Re: Extract file name from path's for both windows and nix format

isoutamo — Mon, 17 Apr 2023 17:12:53 GMT

Is this what you are looking for?

r. Ismo

Re: Extract file name from path's for both windows and nix format

woodcock — Mon, 17 Apr 2023 17:58:22 GMT

| rex field=file_path "([^\r\n\s\\\/]+[\\\/])+(?<file_name>.*)$"