config_df() {
  IGNORE_FILESYSTEM_REGEX="(none|unknown|rootfs|iso9660|squashfs|udf|romfs|ramfs|debugfs|cgroup_root|devtmpfs)"
  echo "graph_title Filesystem usage (in %)
graph_args --upper-limit 100 -l 0
graph_vlabel %
graph_category disk
graph_info This graph shows disk usage on the machine."
  for PART in $(df -PT | grep '^/' | grep -vwE "$IGNORE_FILESYSTEM_REGEX" | sed '/\/[a-z0-9]*$/!d;s/.* \([a-z0-9\/]\{1,\}\)$/\1/g')
  do
    PINFO=$(df -P "$PART" | tail -1);
    PNAME=$(echo "$PINFO" | cut -d " " -f 1 | sed 's/\//_/g')
    echo "$PNAME.label $PART"
    echo "$PNAME.info $PNAME -> $PART"
    echo "$PNAME.warning 92"
    echo "$PNAME.critical 98"
  done
}
fetch_df() {
  for PART in $(df -P | grep '^/' | sed '/\/[a-z0-9]*$/!d;s/.* \([a-z0-9\/]\{1,\}\)$/\1/g')
  do
    PINFO=$(df -P "$PART" | tail -1);
    PNAME=$(echo "$PINFO" | cut -d " " -f 1 | sed 's/[\/.-]/_/g')
    echo "$PNAME.value" "$(echo "$PINFO" | sed -e 's/\%//g' -e 's/  */ /g' | cut -d " " -f 5)"
  done
}