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backup_script [2025/05/03 10:23] – thilobackup_script [2025/05/06 08:08] (current) – little typo thilo
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  \\  \\
  
-  - If an IP and an ID file are given, these will be used, else defaults apply (Router IP from `ip r`)+  - Command line arguments: backup directory, id-file and router /.eg. as IP). If provided, these will be used, else defaults apply (Router IP from `ip r`)
   - Date regex covers from 1970 - in case Tomato Router has no time.   - Date regex covers from 1970 - in case Tomato Router has no time.
   - Sometimes tar fails.  - cover this error by just cleaning, next cron run may do it   - Sometimes tar fails.  - cover this error by just cleaning, next cron run may do it
Line 62: Line 62:
    #!/bin/bash    #!/bin/bash
        
-   ROUTER=`ip r | grep default | head -1 | cut -d " " -f 3` +   DIR2BACKUP=/home/${LOGNAME}/Router_Backups
-   USER=root+
    LOCAL_ID_FILE=/home/${LOGNAME}/.ssh/id_tomato_ecdsa    LOCAL_ID_FILE=/home/${LOGNAME}/.ssh/id_tomato_ecdsa
 +   ROUTER=`ip r | grep default | head -1 | cut -d " " -f 3`   
        
 +   while [[ $# -gt 0 ]]; do
 +        case $1 in
 +                -d|--dir2backup)
 +                        DIR2BACKUP=$2 ;;
 +                -i|--idfile)
 +                        LOCAL_ID_FILE=$2 ;;
 +                -r|--router)
 +                        ROUTER=$2 ;;
 +        esac
 +        shift; shift
 +   done
        
-   if [[ "$1h" != "h" ]]; then +   BACKUPHOST=`ip r | grep "${ROUTER%1}0/24" | head -1 | cut -d " " -f 9`
-        ROUTER=$1 +
-        LOCAL_ID_FILE=$2 +
-   fi+
    echo    echo
-   echo "Backing up: "${ROUTER} +   echo "Backup dir:  "${DIR2BACKUP} 
-   echo "ID-file:    "${LOCAL_ID_FILE}+   echo "id file:     "${LOCAL_ID_FILE} 
 +   echo "Backing up:  "${ROUTER} 
 +   echo "Backup host: "${BACKUPHOST}
    echo    echo
-   BACKUPHOST=`ip r | grep ${ROUTER} | grep default | head -1 | cut -d " " -f 9`+   USER=root
    PORT=5555    PORT=5555
-   BACKUP_DIR=/home/${LOGNAME}/Router_Backups 
    SCRIPT_FILE=nvram_save_cfg.sh    SCRIPT_FILE=nvram_save_cfg.sh
    PREFIX=FreshTomato    PREFIX=FreshTomato
Line 89: Line 98:
    NO_OF_DIFF_FILES_TO_BE_KEPT=10    NO_OF_DIFF_FILES_TO_BE_KEPT=10
          
-   pushd ${BACKUP_DIR} > /dev/null+   pushd ${DIR2BACKUP} > /dev/null
        
    rm -f ${TRANSFER_FILENAME}     rm -f ${TRANSFER_FILENAME} 
-   +   #
    # Thinks like    # Thinks like
    # VAR=`nvram get os_version`     # VAR=`nvram get os_version` 
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         rm -f ${SCRIPT_FILE} ${TRANSFER_FILENAME} ${PREFIX}_*_${DATE_REGEX}_${TIME_REGEX}.${EXT}         rm -f ${SCRIPT_FILE} ${TRANSFER_FILENAME} ${PREFIX}_*_${DATE_REGEX}_${TIME_REGEX}.${EXT}
    ENDSSH    ENDSSH
-  +   
    THIS_BACKUP_FILE=`tar -xvf ${TRANSFER_FILENAME} | sed -e "s/^.*${PREFIX}/${PREFIX}/"`    THIS_BACKUP_FILE=`tar -xvf ${TRANSFER_FILENAME} | sed -e "s/^.*${PREFIX}/${PREFIX}/"`
    if [ "${THIS_BACKUP_FILE}" ]; then    if [ "${THIS_BACKUP_FILE}" ]; then
Line 122: Line 131:
         echo ${THIS_BACKUP_FILE}         echo ${THIS_BACKUP_FILE}
         echo         echo
-        # Keep only one file (the latest) per day - delete earlier file of same day 
         TODAYS_BACKUP_FILES_PREFIX=${THIS_BACKUP_FILE%_*}         TODAYS_BACKUP_FILES_PREFIX=${THIS_BACKUP_FILE%_*}
 +        ALL_BACKUP_FILES_PREFIX=${TODAYS_BACKUP_FILES_PREFIX%_*}
 +        DATE=`date +%Y%m%d_%H%M`
 +        if ! [[ `find -cmin 5 | grep ${THIS_BACKUP_FILE}` ]] ; then
 +                # Date of the new files is more that 5 mins in the past  => seems Tomato Router has no date (or date 1970-01-01)
 +                touch ${THIS_BACKUP_FILE}
 +        fi
 +        # Keep only one file (the latest) per day - delete earlier file of same day    
         LIST_OLD_BACKUPS_OF_TODAY=`ls -t ${TODAYS_BACKUP_FILES_PREFIX}_${TIME_REGEX}.${EXT} 2> /dev/null | sed -e 1,1d`         LIST_OLD_BACKUPS_OF_TODAY=`ls -t ${TODAYS_BACKUP_FILES_PREFIX}_${TIME_REGEX}.${EXT} 2> /dev/null | sed -e 1,1d`
         if [ "${LIST_OLD_BACKUPS_OF_TODAY}" ]; then         if [ "${LIST_OLD_BACKUPS_OF_TODAY}" ]; then
                 echo "deleting today's earlier backups (to keep just one per day - the most recent):"                 echo "deleting today's earlier backups (to keep just one per day - the most recent):"
-                rm -v ${LIST_OLD_BACKUPS_OF_TODAY}+                rm -fv ${LIST_OLD_BACKUPS_OF_TODAY}
                 echo                 echo
         fi         fi
         # In total, keep only ${NO_OF_DIFF_FILES_TO_BE_KEPT} files - delete older files (of any day)         # In total, keep only ${NO_OF_DIFF_FILES_TO_BE_KEPT} files - delete older files (of any day)
-        ALL_BACKUP_FILES_PREFIX=${TODAYS_BACKUP_FILES_PREFIX%_*} +        OLDER_FILES=`ls -t ${ALL_BACKUP_FILES_PREFIX}_${DATE_REGEX}_${TIME_REGEX}.${EXT} | sed -e 1,${NO_OF_DIFF_FILES_TO_BE_KEPT}d` 
-        DELETE_OLDER=`ls -t ${ALL_BACKUP_FILES_PREFIX}_${DATE_REGEX}_${TIME_REGEX}.${EXT} | sed -e 1,${NO_OF_DIFF_FILES_TO_BE_KEPT}d` +        if [ "${OLDER_FILES}" ]; then
-        if [ "${DELETE_OLDER}" ]; then+
                 echo "keep only ${NO_OF_DIFF_FILES_TO_BE_KEPT} in total, delete:"                 echo "keep only ${NO_OF_DIFF_FILES_TO_BE_KEPT} in total, delete:"
-                rm -fv ${DELETE_OLDER}+                rm -fv ${OLDER_FILES}
                 echo                 echo
         fi         fi
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    fi    fi
    popd > /dev/null    popd > /dev/null
 +  
  \\  \\
  
backup_script.1746264193.txt.gz · Last modified: 2025/05/03 10:23 by thilo

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