diff --git a/bash/backup.sh b/bash/backup.sh
new file mode 100755
index 0000000..33b4da2
--- /dev/null
+++ b/bash/backup.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+#===========================================================================
+#          FILE: backup.sh
+#         USAGE: ./backup.sh
+#   DESCRIPTION: 시스템 백업을 위한 스크립트
+#       OPTIONS: ---
+#       VERSIOH: 0.01
+#         NOTES: ---
+#        AUTHOR: Ji-Hyeon Gim <potatogim@potatogim.net>
+#     COPYRIGHT: Copyleft(c) 2015 by Ji-Hyeon Gim.
+#       LICENSE: GNU General Public License v2.0
+#          DATE: 2015년 11월 09일 12:58
+#===========================================================================
+
+##############################################################################
+# Preprocess
+##############################################################################
+DATE=`date +"%Y%m%d"`
+PREV_DATE=`date --date '7 days ago ' +"%Y%m%d"`
+
+BACKUP_DIR="/home/potatogim/backup"
+SPARE_DIR="/mnt/data/spare"
+
+LOG_DIR="/var/log"
+LOG_FILE="${LOG_DIR}/backup_${DATE}.log"
+OLD_LOG_FILE="${LOG_DIR}/backup_${PREV_DATE}.log"
+
+##############################################################################
+# Ready to log
+##############################################################################
+if [ -f $LOG_FILE ]; then
+    rm -f $LOG_FILE
+fi
+
+if [ -f $OLD_LOG_FILE ]; then
+    rm -f $OLD_LOG_FILE
+fi
+
+exec 3<>$LOG_FILE
+exec 1>&3
+exec 2>&3
+
+##############################################################################
+# Backup MySQL database
+##############################################################################
+echo ">>>>> Backup Database Now..."
+
+echo ">> mysqldump -u root --all-databases > ${BACKUP_DIR}/db_${DATE}.sql"
+mysqldump -u root --all-databases 1>${BACKUP_DIR}/db_${DATE}.sql
+
+echo ">> chown root.root ${BACKUP_DIR}/db_${DATE}.sql"
+chown root.root ${BACKUP_DIR}/db_${DATE}.sql
+
+echo ">> chmod 755 ${BACKUP_DIR}/db_${DATE}.sql"
+chmod 755 ${BACKUP_DIR}/db_${DATE}.sql
+
+echo ">> rm -f ${BACKUP_DIR}/db_${DATE}.sql"
+rm -f ${BACKUP_DIR}/db_${PREV_DATE}.sql
+
+##############################################################################
+# Backup www
+##############################################################################
+echo ">>>>> Backup www Now..."
+
+echo ">> tar -cpzf ${BACKUP_DIR}/www_${DATE}.tgz -C /mnt/data www"
+tar -cpzvf ${BACKUP_DIR}/www_${DATE}.tgz -C /mnt/data www
+
+echo ">> rm -f ${BACKUP_DIR}/www_${PREV_DATE}.tgz"
+rm -f ${BACKUP_DIR}/www_${PREV_DATE}.tgz
+
+###
+# Backup repository
+#
+echo ">>>>> Backup Repository Now..."
+
+echo ">> tar -cpzf ${BACKUP_DIR}/git_${DATE}.tgz -C /home git"
+tar -cpzvf ${BACKUP_DIR}/git_${DATE}.tgz -C /home git
+
+echo ">> rm -f ${BACKUP_DIR}/git_${PREV_DATE}.tgz"
+rm -f ${BACKUP_DIR}/git_${PREV_DATE}.tgz
+
+##############################################################################
+# Backup configurations
+##############################################################################
+echo ">>>>> Backup Configurations Now..."
+
+LIST[0]="/etc/nginx"
+LIST[1]="/etc/mysql"
+
+for i in "${LIST[@]}"; do
+    echo ">> tar -rpf ${BACKUP_DIR}/conf_${DATE}.tar $i"
+    tar -rpvf ${BACKUP_DIR}/conf_${DATE}.tar $i
+done;
+
+
+echo ">> rm -f ${BACKUP_DIR}/conf_${PREV_DATE}.tar"
+rm -f ${BACKUP_DIR}/conf_${PREV_DATE}.tar
+
+##############################################################################
+# Create backup spare
+##############################################################################
+echo ">>>>> Creating Backup Spare..."
+
+echo ">> rsync -avz --del ${BACKUP_DIR}/ ${SPARE_DIR}/"
+rsync -avz --del ${BACKUP_DIR}/ ${SPARE_DIR}/ 
+
+##############################################################################
+# Adjust owner & permissions
+##############################################################################
+chown root.root ${SPARE_DIR}/* 2>/dev/null
+chown potatogim.potatogim ${SPARE_DIR}2 2>/dev/null
+
+exec 3>&-