RSyslog Documentation



substring(str, start, subStringLength)

Creates a substring from str. The substring begins at start and is at most subStringLength characters long.


The first character of the string has the value 0. So if you set start to ‘2’, the substring will start with the third character.


In the following example a substring from the string is created, starting with the 4th character and being 5 characters long.

substring("123456789", 3, 5)

This example will result in the substring “45678”.

See also

Help with configuring/using Rsyslog:

  • Mailing list - best route for general questions
  • GitHub: rsyslog source project - detailed questions, reporting issues that are believed to be bugs with Rsyslog
  • Stack Exchange (View, Ask) - experimental support from rsyslog community

See also

Contributing to Rsyslog:

Copyright 2008-2020 Rainer Gerhards (Großrinderfeld), and Others.

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