Help with a regex (extract the file name from the file path)

[kvnpichon]

Hi Splunkers,

I need some help with a regex/command to extract the file name from the file path :

• path\\to\\the\\file\\file_name
• or path\\to\\the\\file\\file_name (path\\inside\\file)

Actually I have the EVAL command in my props.conf :

• EVAL-file_name = mvindex(split(filePath,"\\"),-1)

The EVAL command working fine for most of the paths. But sometimes, the path is not common and contains  parentheses and backslashs after the file_name value...

This is some examples of unusual paths I encountered (what I want to extract is in bold) :

• T:\\test\\FileZilla_3.47.2.1_win64_sponsored-setup.exe (NONAMEFL)
• C:\\Users\\testuser\\Desktop\\testuser\\Local Settings\\Temporary Internet Files\\Content.IE5\\test\\ocspackage[1].exe($PLUGINSDIR\\$PLUGINSDIR\\RemCom.exe)
• C:\\TEST\\testing\\@Archives\\@SRV\\SRV_Servers\\tests\\ocs-inventory\\OCSNG_AGENT_DEPLOYMENT_TOOL_1.0.1.2.zip ($INSTDIR\\RemCom.exe)

With my actual configuration I extract only the value after the last "\\" of the line...

Could you help me to construct that regex/command to be able to exctract the right values ?

Thanks

[scelikok]

Hi @kvnpichon,

Please try below in your props;

props.conf
REPORT-file_name=file_name_extract

transforms.conf
[file_name_extract]
SOURCE_KEY= filePath
REGEX= "\\\\(?<file_name>[A-Za-z0-9\._\[\]-]+\.(?:exe|zip))(?:\s|\()"
FORMAT = file_name::$1

[kvnpichon]

Hi, 

I tried to add your line in my props.conf file but the file_name isn't extracted as expected.

[ITWhisperer]

trim(mvindex(split(mvindex(split(filePath,"("),0),"\\"),-1))