Splunk search to remove entries where one value exists in another value

[ccastrapel]

Hi,

I have a working search right now that returns user and host. I am wondering how to remove results where the value of "user" exists in the value of "host". For example, if user="bob" and host="bob-linux", the entire entry would be removed. However, if user="ted" and host="bob-linux", the entry would remain. Is something like this possible through regex? I've searched, but I must not be hitting the right terminology because I'm coming up empty.

Thanks,
Curtis

[Ayn]

... | where !match(host,user)