OneSight Administrator Guide

Using Regular Expressions for Pattern Matching
df -k
/^[^F](?:\S+\s+){4,4}([0-
9]+)%\s+(\S+)/
Any percentage value in
the Capacity column of
the Filesystem data
returned by the df
program output (e.g.
3.0%).
The OneSight Virtual Agent monitor includes several pre-defined
OS/Program/Perl expression definitions for common metrics accessible
using command line programs available with several versions of UNIX.
You can also define custom settings in the Virtual Agent.
The perl expressions are evaluated as follows:
Subpattern
^
Description
Beginning of the line.
( ) The part of the expression to return.
\S Match a non-whitespace character.
\s Match a whitespace character.
(?:\S+\s+)
Represents a column in the program output.
Matches one or more non-whitespace character and
one or more whitespace character.
{4,4} Match at least 4 times but not more than 4 times
(min,max).
[0-9]+ Match one or more occurrences of anything between
0 and 9.
More information about using Perl expressions is available at
www.perl.com.
418 OneSight Administrator Guide