#!/bin/bash COLLECTD_CONF_FILE=/opt/collectd/etc/collectd.conf INCLUDE_CONF="<Include \"/opt/collectd/etc/collectd.conf.d\">" function write_include { echo $INCLUDE_CONF | sudo tee -a $COLLECTD_CONF_FILE; echo " Filter \"*.conf\"" | sudo tee -a $COLLECTD_CONF_FILE; echo -e "</Include>" | sudo tee -a /opt/collectd/etc/collectd.conf } grep -qe '<Include "/opt/collectd/etc/collectd.conf.d">' $COLLECTD_CONF_FILE; [ $? -ne 0 ] && write_include