Finding embedded dates for an automated search

[jboustead]

My search is pulling out events with the date embedded within the event, eg:

[2020-10-05 07:23:08.308] ALL **** sending file= /u01/shared/pc/files/OUT/IF_148/Transferring/XXX_XXXXXX..XX_LUIS_312XXX_20201005_001.csv

[2020-10-05 13:40:17.101] ALL **** sending file= /u01/shared/pc/files/OUT/IF_148/Transferring/XXX_XXXXXX..XX_EDIW_312XXX_20200721_003.CSV

The embedded dates in the format '202001005' & '202001005' respectively. Is there a way to search in Splunk for events that will only pick up the events for a certain date embedded within them? - without having to manually alter the search each time?

(current search for ref: **** sending file= /u01/shared/pc/files/OUT/IF_148/Transferring/*312*)

[richgalloway · Accepted solution]

The regex command may help.  It filters events based on a regular expression.

index=foo "**** sending file= /u01/shared/pc/files/OUT/IF_148/Transferring/*312*"
| regex file="2020\d{4}"

[jboustead]

That is great - thanks  !

I am currently trying to use a regex to pick out the events with the date '2020XXXX' - I want the regex to search pick up any event date providing it does not have 'reg' following the '.' or '_' (pick out all the event dates below, except the first). How do I do this? 

Current regex: 2020\d{4}[\.\_]

List of different events\logs from the splunk search:

_20201007144100_20200416_reg.zip

_20201007103200_20201007.zip

_20201007095000_20201007.zip

_20201007092933_20201007.zip

_20201007061717_20201007_txn.zip

_20201007041719_20201007.zip

@Anonymous