backup data using rsync

backup_rsync.sh

#!/bin/bash

set -e

DATE="`date +%Y%m%d_%H%M%S`"

TYPE=""
SRC_DIR=""
DEST_DIR=""
BACKUP_DIR=""
BACKUP_FILE="$HOSTNAME"
LOG_PATH="/var/log/backup_rsync.log"

print_usage() {
  cat <<EOF
Description : Backup data using rsync
Usage: $0 [options]
   -t    Choose backup types. Available value : [ LOCAL ]
   -s    Source data directory
   -d    Destination backup directory
   -b    Directory for saving a archive file
   -f    (Optional) Backup file name. (Default : $BACKUP_FILE)
   -l    (Optional) Log directory (Default : $LOG_PATH)
   -h    Print usage
Example :
  $0 -t LOCAL -s /data -d /backup/tmp -b /backup
  $0 -t LOCAL -s /data -d /backup/tmp -b /backup -f rsync_backup_file -l /data/logs/backup_rsync.log
EOF
}

function print_start_msg() {
  echo -e "[`date \"+%Y-%m-%d %H:%M:%S\"`] Start Rsync Backup. Type : $1" >> $LOG_PATH
}

function print_finish_msg() {
  echo -e "[`date \"+%Y-%m-%d %H:%M:%S\"`] Done.\n" >> $LOG_PATH
}

function print_msg() {
  echo -e "[`date \"+%Y-%m-%d %H:%M:%S\"`] $1" >> $LOG_PATH
}

if [ "$#" -eq "0" ]; then
  print_usage
  exit 13
fi

while getopts ":t:s:d:l:b:f:h" opt
do
  case $opt in
    t)
      TYPE="$OPTARG"
      ;;
    s)
      SRC_DIR="$OPTARG"
      ;;
    d)
      DEST_DIR="$OPTARG"
      ;;
    l)
      LOG_PATH="$OPTARG"
      ;;
    b)
      BACKUP_DIR="$OPTARG"
      ;;
    f)
      BACKUP_FILE="$OPTARG"
      ;;
    \?)
      echo "[ERROR] Invalid option: -$OPTARG" >&2
      exit 1
      ;;
    :)
      echo "[ERROR] Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
    h | *)
      print_usage
      exit 0
      ;;
  esac
done


if [[ -z "$TYPE" || -z "$SRC_DIR" || -z "$DEST_DIR" || -z "$BACKUP_DIR" ]];
then
  echo -e "[ERROR] Missing a required parameter."
  exit 1
fi

case $TYPE in
  "LOCAL")
    print_start_msg $TYPE

    print_msg "Backup $SRC_DIR directory to $DEST_DIR."
    (time rsync -azvc --delete $SRC_DIR $DEST_DIR) >> $LOG_PATH 2>&1

    print_msg "Archive and Compress $DEST_DIR to $BACKUP_DIR/$BACKUP_FILE-$DATE.tar.gz"
    (time tar -czf $BACKUP_DIR/$BACKUP_FILE-$DATE.tar.gz $DEST_DIR) >> $LOG_PATH 2>&1

    print_finish_msg
    exit 0
    ;;
  *)
    echo "[ERROR] Unknown type value. : $TYPE"
    exit 1
    ;;
esac