How to get the full directory path to a file? (e.g. dirname)

[bwlm]

Similar to the Regex to find a directory in a path question, how does one find the full directory path to an file (e.g. like the "dirname" command in Linux)?

For example in Windows Security Event logs, Event ID 4688 for New Process Creation has the field "New_Process_Name" which is the full path to the executable... how does one get the full directory of the executable?

[bwlm · Accepted solution]

In simply using the Splunk Multivalue eval functions "split", "mvcount", "mvindex" and "mvjoin"... here is one possible solution:

| makeresults
| eval New_Process_Name="C:\Windows\System32\notepad.exe"
| eval DirNameExeValues=split(New_Process_Name,"\\")
| eval DirNameExeValueCount=mvcount(DirNameExeValues)
| eval DirName=mvindex(DirNameExeValues,0,DirNameExeValueCount-2)
| eval DirName=mvjoin(DirName, "\\")
| eval ExeName=mvindex(split(New_Process_Name,"\\"),-1)
| table New_Process_Name, DirNameExeValues, DirNameExeValueCount, DirName, ExeName

 Or to compress the DirName evaluation from multiple lines to one...

| makeresults
| eval New_Process_Name="C:\Windows\System32\notepad.exe"
| eval DirName=mvjoin( mvindex( split(New_Process_Name,"\\"),0, mvcount(split(New_Process_Name,"\\"))-2 ), "\\")
| eval ExeName=mvindex(split(New_Process_Name,"\\"),-1)
| table New_Process_Name, DirName, ExeName