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setup_backup.sh
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#!/bin/bash
echo -e "\033[1;94m远程备份脚本\033[0m"
echo -e "\033[1;94m项目地址：（https://github.com/small-haozi/backup-Remote）"
echo -e " "
echo "======================================================"
echo -e " "
# 创建存储配置和脚本的目录
BACKUP_DIR="/etc/back-Remote"
if [ ! -d "$BACKUP_DIR" ]; then
sudo mkdir -p $BACKUP_DIR
echo "已创建目录: $BACKUP_DIR"
fi
echo -e "\033[1;94m请输入服务器信息:\033[0m"
echo -e " "
read -p "远程服务器IP: " REMOTE_HOST
read -p "远程服务器用户名 [默认: root]: " REMOTE_USER
REMOTE_USER=${REMOTE_USER:-root}
read -p "远程服务器密码: " REMOTE_PASS
read -p "远程服务器端口 [默认: 22]: " REMOTE_PORT
REMOTE_PORT=${REMOTE_PORT:-22}
read -p "远程目录: " REMOTE_DIR
read -p "本地目录 [默认: /root/backup-$REMOTE_HOST]: " LOCAL_DIR
LOCAL_DIR=${LOCAL_DIR:-/root/backup-$REMOTE_HOST}
echo -e "\033[1;94m是否启用Telegram消息推送功能? (y/n):\033[0m"
read -p "选择: " ENABLE_TELEGRAM
if [ "$ENABLE_TELEGRAM" = "y" ]; then
echo -e "\033[1;94m请输入Telegram消息推送的配置信息:\033[0m"
read -p "Telegram bot token: " TELEGRAM_BOT_TOKEN
read -p "Telegram chat ID: " TELEGRAM_CHAT_ID
fi
echo -e " "
echo "======================================================"
echo -e "当前设置信息为："
echo -e "远程服务器IP: $REMOTE_HOST"
echo -e "远程服务器用户名: $REMOTE_USER"
echo -e "远程服务器密码: $REMOTE_PASS"
echo -e "远程服务器端口: $REMOTE_PORT"
echo -e "远程目录: $REMOTE_DIR"
echo -e "本地目录: $LOCAL_DIR"
if [ "$ENABLE_TELEGRAM" = "y" ]; then
echo -e "Telegram bot token: $TELEGRAM_BOT_TOKEN"
echo -e "Telegram chat ID: $TELEGRAM_CHAT_ID"
fi
echo -e "请仔细确认是否输入错误！！如需修改，请自行修改 $BACKUP_DIR/backup_config.conf 文件"
echo "======================================================"
echo -e " "
echo -e "\033[1;94m备份文件数量设置:\033[0m"
read -p "是否设置最大备份文件数量? (y/n): " SET_MAX_BACKUPS
if [ "$SET_MAX_BACKUPS" = "y" ]; then
read -p "最大备份文件数量: " MAX_BACKUPS
fi
# 删除旧的配置文件和脚本（如果存在）
sudo rm -f $BACKUP_DIR/backup_config.conf
sudo rm -f $BACKUP_DIR/back.sh
# 保存到配置文件
CONFIG_FILE="$BACKUP_DIR/backup_config.conf"
echo "# 配置文件" > $CONFIG_FILE
echo "REMOTE_HOST=$REMOTE_HOST # 远程服务器IP" >> $CONFIG_FILE
echo "REMOTE_USER=$REMOTE_USER # 远程服务器用户名，默认为root" >> $CONFIG_FILE
echo "REMOTE_PASS=$REMOTE_PASS # 远程服务器密码" >> $CONFIG_FILE
echo "REMOTE_PORT=$REMOTE_PORT # 远程服务器端口，默认为22" >> $CONFIG_FILE
echo "REMOTE_DIR=$REMOTE_DIR # 远程目录" >> $CONFIG_FILE
echo "LOCAL_DIR=$LOCAL_DIR # 本地目录，默认为/root/backup-\$REMOTE_HOST" >> $CONFIG_FILE
if [ "$SET_MAX_BACKUPS" = "y" ]; then
echo "MAX_BACKUPS=$MAX_BACKUPS # 最大备份文件数量" >> $CONFIG_FILE
fi
if [ "$ENABLE_TELEGRAM" = "y" ]; then
echo "TELEGRAM_BOT_TOKEN=$TELEGRAM_BOT_TOKEN # Telegram bot token" >> $CONFIG_FILE
echo "TELEGRAM_CHAT_ID=$TELEGRAM_CHAT_ID # Telegram chat ID" >> $CONFIG_FILE
fi
# 创建 back.sh 脚本
cat <<EOF > $BACKUP_DIR/back.sh
#!/bin/bash
# 加载配置文件
source $CONFIG_FILE
# 发送Telegram消息的函数
send_telegram_message() {
if [ "$ENABLE_TELEGRAM" = "y" ]; then
local message="$1"
local bot_token="$TELEGRAM_BOT_TOKEN" # 使用用户输入的Telegram bot token
local chat_id="$TELEGRAM_CHAT_ID" # 使用用户输入的chat ID
# 处理文件名，只显示开头三位和末尾三位
local filename="$2"
local filename_length=${#filename}
if [ $filename_length -gt 6 ]; then
local start=${filename:0:3}
local end=${filename: -3}
filename="$start...$end"
fi
message=$(echo "$message" | sed "s/{filename}/$filename/g")
curl -s -X POST "https://api.telegram.org/bot$bot_token/sendMessage" -d chat_id="$chat_id" -d text="$message"
fi
}
# 检查并安装 sshpass 和 rsync
if ! command -v sshpass &> /dev/null; then
echo -e "\033[0;33msshpass 未安装，正在安装...\033[0m"
sudo apt-get install -y sshpass
fi
if ! command -v rsync &> /dev/null; then
echo -e "\033[0;33mrsync 未安装，正在安装...\033[0m"
sudo apt-get install -y rsync
fi
# 创建本地备份目录（如果不存在）
sudo mkdir -p \$LOCAL_DIR
# 检查远程目录是否存在
if sshpass -p "\$REMOTE_PASS" ssh -o StrictHostKeyChecking=no -p \$REMOTE_PORT \$REMOTE_USER@\$REMOTE_HOST "[ -d \$REMOTE_DIR ]"; then
echo -e " "
echo "正在检查远程服务器目录: \$REMOTE_DIR"
echo -e " "
# 找到最新的文件
LATEST_FILE=\$(sshpass -p "\$REMOTE_PASS" ssh -o StrictHostKeyChecking=no -p \$REMOTE_PORT \$REMOTE_USER@\$REMOTE_HOST "find \$REMOTE_DIR -type f -printf '%T@ %p\n' | sort -nr | head -n 1 | cut -d' ' -f2")
LOCAL_LATEST_FILE=\$(find \$LOCAL_DIR -type f -printf '%T@ %p\n' | sort -nr | head -n 1 | cut -d' ' -f2)
REMOTE_LATEST_FILENAME=\$(basename "\$LATEST_FILE")
LOCAL_LATEST_FILENAME=\$(basename "\$LOCAL_LATEST_FILE")
echo "======================================================"
echo -e " "
echo "远程最新文件为: \$REMOTE_LATEST_FILENAME"
echo -e " "
echo "本地最新文件为: \$LOCAL_LATEST_FILENAME"
echo -e " "
echo "======================================================"
echo -e " "
# 比较文件名
if [ "\$REMOTE_LATEST_FILENAME" != "\$LOCAL_LATEST_FILENAME" ]; then
echo "发现新文件，正在同步..."
echo -e "======================================================"
# 使用 rsync 同步最新的文件到本地
sshpass -p "\$REMOTE_PASS" rsync -avz -e "ssh -o StrictHostKeyChecking=no -p \$REMOTE_PORT" --progress "\$REMOTE_USER@\$REMOTE_HOST:\$LATEST_FILE" "\$LOCAL_DIR"
[ "$ENABLE_TELEGRAM" = "y" ] && send_telegram_message "备份完成。最新文件：{filename}" "\$REMOTE_LATEST_FILENAME"
echo "备份完成。"
echo -e " "
echo "======================================================"
else
echo "最新文件已存在，无需备份。"
[ "$ENABLE_TELEGRAM" = "y" ] && send_telegram_message "最新文件已存在，无需备份。文件名：{filename}" "\$REMOTE_LATEST_FILENAME"
echo -e " "
echo "======================================================"
fi
else
echo "======================================================"
echo -e " "
echo "远程目录不存在。请检查 /etc/backup-Remote/backup_config.conf 文件中是否设置错误"
[ "$ENABLE_TELEGRAM" = "y" ] && send_telegram_message "远程目录不存在。请检查配置。"
echo -e " "
echo "======================================================"
fi
# 管理本地备份文件数量
if [ ! -z "\$MAX_BACKUPS" ]; then
cd \$LOCAL_DIR
if [ \$(ls -1 | wc -l) -gt \$MAX_BACKUPS ]; then
ls -t | tail -n +\$(expr \$MAX_BACKUPS + 1) | xargs rm -f
[ "$ENABLE_TELEGRAM" = "y" ] && send_telegram_message "超出最大备份文件数量，已删除最旧的备份文件。"
echo "超出最大备份文件数量，已删除最旧的备份文件。"
fi
fi
EOF
# 给 back.sh 脚本执行权限
sudo chmod +x $BACKUP_DIR/back.sh
echo "======================================================"
echo -e " "
echo -e "\033[1;94m配置文件和备份脚本已创建并保存在\033[0m \033[1;92m $BACKUP_DIR。\033[0m"
echo -e " "
# 创建符号链接
sudo ln -sf $BACKUP_DIR/back.sh /usr/local/bin/back.sh
echo -e "\033[1;94m已创建符号链接，可以从任何位置运行\033[0m \033[1;92m back.sh。\033[0m"
echo -e " "
echo "======================================================"
echo -e " "
# 安排在脚本执行完毕后删除自身
nohup bash -c "sleep 2; rm -- \"$0\"" &>/dev/null &