On Thu, 13 Aug 2015, Brian Knox wrote:
Hello! I was working on an rsyslog configuration today and realized I've never run into a situation where I wanted to filter based on whether or not a property derived from a call to mmjsonparse exists or not. E.g., some logs will have "myprop" in their json, I want to route all logs that do one way, and all logs that do not another.
We don't have an exists() function (and it would be useful), but I've found that I can usually get away with $!var != ''.
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