Sadly there is no documentation for this plugin.
#!/bin/sh # Configuration directives, edit before first use. BACKUP_DIR=/path/to/your/backups # How old backups should be considered as non-yound anymore in [days]. LIFETIME=2 # The situation is critical if there are no young files, the backup is down. case $1 in config) cat <<'EOM' graph_title Number of young files at backup directory graph_vlabel number graph_category backup autobackup.label number autobackup.critical 1: EOM exit 0;; esac printf "autobackup.value " find "$BACKUP_DIR" -mtime "-$LIFETIME" | wc -l