Splunk Search

How don't we nullify the data?

danielbb
Motivator

A developer here wrote the following -

|eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", NULL)
|eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", NULL)
|eval admin_activity=if((like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", NULL)

We end up having admin_activity only as Config Change because the last eval nullifies the findings from the above two evals.

What can we do here?

Tags (1)
0 Karma
1 Solution

somesoni2
Revered Legend

Merge them in single eval-case , like this, so it stops overwriting value of admin_activity after first condition is true.

|eval admin_activity=case((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", (like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", (like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", true(), null())

View solution in original post

Sukisen1981
Champion

hi @danielbb
You need to use a single eval

   |eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success",if((like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", NULL)))

somesoni2
Revered Legend

Merge them in single eval-case , like this, so it stops overwriting value of admin_activity after first condition is true.

|eval admin_activity=case((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", (like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", (like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", true(), null())
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