X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fcollectd-exec.pod;h=81b3a2ecc07ecb11302b7ede4d2e26f87e72f0d8;hb=be99a844a40d7037a910d37a894988b807631a6e;hp=b95779dd5fc4414cb6e65bebcac880d6c048070a;hpb=6e419a825c50f9c97471aba7d50521bfc7e19828;p=collectd.git

diff --git a/src/collectd-exec.pod b/src/collectd-exec.pod
index b95779dd..81b3a2ec 100644
--- a/src/collectd-exec.pod
+++ b/src/collectd-exec.pod
@@ -230,6 +230,23 @@ associated with a certain value.
 
 =back
 
+=head1 ENVIRONMENT
+
+The following environment variables are set by the plugin before calling
+I<exec>:
+
+=over 4
+
+=item COLLECTD_INTERVAL
+
+Value of the global interval setting.
+
+=item COLLECTD_HOSTNAME
+
+Hostname used by I<collectd> to dispatch local values.
+
+=back
+
 =head1 USING NAGIOS PLUGINS
 
 Though the interface is far from perfect, there are tons of plugins for Nagios.