From 31621c5b37b63c56d56d4ef14b0a6db8c2e20af8 Mon Sep 17 00:00:00 2001
From: garnier-quentin <garnier.quentin@gmail.com>
Date: Tue, 8 Jan 2019 14:19:33 +0100
Subject: [PATCH] add help message for extend perfdata system

---
 centreon/plugins/output.pm | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/centreon/plugins/output.pm b/centreon/plugins/output.pm
index 017cce038..3fdcbc296 100644
--- a/centreon/plugins/output.pm
+++ b/centreon/plugins/output.pm
@@ -1010,10 +1010,26 @@ Filter perfdata that match the regexp.
 Put max perfdata (if it exist) in a specific perfdata 
 (without values: same with '_max' suffix) (Multiple options)
 
-=item B<--change-perfdata>
+=item B<--change-perfdata> B<--extend-perfdata> 
 
-Change perfdata name (Multiple option)
-Syntax: regexp_matching,regexp_substitute
+Change or extend perfdata. 
+Syntax: --extend-perfdata=searchlabel,newlabel,target[,newuom]
+
+Common examples:
+
+=over 4
+
+Change storage free perfdata in used: --change-perfdata=free,used,invert()
+
+Change storage free perfdata in used: --change-perfdata=used,free,invert()
+
+Scale traffic values automaticaly: --change-perfdata=traffic,,scale(auto)
+
+Scale traffic values in Mbps: --change-perfdata=traffic_in,,scale(Mbps),mbps
+
+Change traffic values in percent: --change-perfdata=traffic_in,,percent()
+
+=back
 
 =item B<--range-perfdata>