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Using regular expression on whole file



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I'm using a filesensor to detect if the last line of a file containss OK Or NOT_OK. This file is on append mode, added by a Windows Schedule Task.

The file is like this :


My Regex is .*;NOT_OK$

The alarm is triggered but when a new line is added, the alarm is not canceled.

I think the Regex is executed on each line of the file, and not on the whole content, even if i check "always transmis the whole file" in sensor options.

How can I do that ?

alarm script sensor

Created on Aug 8, 2019 8:08:15 AM by  elo (0) 1

Last change on Aug 8, 2019 10:58:01 AM by  Sebastian Kniege [Paessler Support]

1 Reply



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Hi elo,

Thank you very much for your contact.

The RegEx appears to be well formatted. Do I understand you correctly, that this is a contentiously growing file? If so, I would also expect the sensor to change its state based on the findings of the last line. For instance, if the last line does not contain OK or NOT_OK, the sensor should behave differently than when the string is found.

Does this sum up your situation?

Best regards,

Created on Aug 9, 2019 10:30:47 AM by  Sebastian Kniege [Paessler Support]

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