In my limited experience I've managed to use both in similar ways,
though by passing '$!' to a remote node I understand[1] that I'm not
including the local variables. Those values are stored within '$.' instead.
For setting values within a configuration for reference within
templates, functions and parameters, (ignoring whether I wish to pass
the values on later) is there a functional difference between the two?
On a related note, though I see that global variables are covered in the
"Log Filtering with Rsyslog" article[2] by David Lang and mentioned as a
v8 official feature, I didn't find many references to it in the current
v8 documentation. Am I overlooking something?
Thanks.
[1]
http://www.rsyslog.com/doc/master/rainerscript/variable_property_types.html
[2] https://www.usenix.org/system/files/login/articles/06_lang-online.pdf
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