Can anyone show me how an if statement with a regex look like in logstash?
my statement s
if [fieldname] =~ /^[0-9]$/
if [fieldname] =~ "^[0-9]$"
does not work
What I intend to do is to check if the "fieldname" contains an integer
This is the correct syntax:
if [fieldname] =~ /^[0-9]*$/This does not work. I think the problem is the value of the field is e.g. 1 instead of "1"
How should I handle this?
Yes, regexp matches don't work on numbers. Perhaps you can just use normal inequality checks then? They won't be true unless the field is a number.
if [fieldname] >= 0 and [fieldname] < 2147483647 # or some other large number
1 Like
Tried this before. Got a page of error message.
In that case a Ruby filter might be the only way.
did a workaround in a not so elegant way.
I created a new field and appended a blank space to it and gsub to remove the blank space. This will make it into a string and work with the regex.
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