292 lines
7.2 KiB
Bash
292 lines
7.2 KiB
Bash
#!/bin/bash
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# FTP备份脚本
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# 用法: ./ftp_backup.sh -p密码 目录1 目录2 目录3 文件1
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set -e # 遇到错误立即退出
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# 配置信息（请根据实际情况修改）
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FTP_SERVER="ftp.example.com"
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FTP_PORT="21"
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FTP_USER="username"
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BACKUP_PREFIX="backup"
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REMOTE_PATH="/backups"
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# 颜色输出
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m' # No Color
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log() {
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echo -e "${GREEN}[$(date +'%Y-%m-%d %H:%M:%S')] $1${NC}"
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}
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warn() {
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echo -e "${YELLOW}[$(date +'%Y-%m-%d %H:%M:%S')] 警告: $1${NC}"
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}
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error() {
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echo -e "${RED}[$(date +'%Y-%m-%d %H:%M:%S')] 错误: $1${NC}" >&2
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exit 1
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}
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# 显示用法信息
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usage() {
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echo "用法: $0 -p密码 目录1 目录2 目录3 文件1"
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echo "选项:"
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echo " -p密码 FTP密码（包含特殊字符时请直接跟在-p后面）"
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echo "示例: $0 -pMy@Complex#Password123 /home/user /etc /var/log /important/file.txt"
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exit 1
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}
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# 检测系统类型并安装FTP客户端
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install_ftp_client() {
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local ftp_client=""
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# 检测系统类型
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if command -v apt-get >/dev/null 2>&1; then
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log "检测到 Debian/Ubuntu 系统"
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ftp_client="ftp"
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apt-get update && apt-get install -y $ftp_client
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elif command -v yum >/dev/null 2>&1; then
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log "检测到 RHEL/CentOS 系统"
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ftp_client="ftp"
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yum install -y $ftp_client
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elif command -v dnf >/dev/null 2>&1; then
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log "检测到 Fedora/RHEL 8+ 系统"
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ftp_client="ftp"
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dnf install -y $ftp_client
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elif command -v apk >/dev/null 2>&1; then
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log "检测到 Alpine 系统"
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ftp_client="lftp"
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apk add --no-cache $ftp_client
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elif command -v zypper >/dev/null 2>&1; then
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log "检测到 openSUSE 系统"
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ftp_client="ftp"
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zypper install -y $ftp_client
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else
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error "无法检测系统类型或不受支持的系统"
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fi
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# 验证安装是否成功
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if command -v ftp >/dev/null 2>&1 || command -v lftp >/dev/null 2>&1; then
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log "FTP客户端安装/验证成功"
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else
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error "FTP客户端安装失败"
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fi
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}
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# 检查FTP客户端是否已安装
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check_ftp_client() {
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if command -v ftp >/dev/null 2>&1; then
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FTP_CMD="ftp"
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log "找到 ftp 命令"
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elif command -v lftp >/dev/null 2>&1; then
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FTP_CMD="lftp"
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log "找到 lftp 命令"
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else
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warn "未找到FTP客户端，尝试安装..."
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install_ftp_client
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# 重新检查
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if command -v ftp >/dev/null 2>&1; then
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FTP_CMD="ftp"
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elif command -v lftp >/dev/null 2>&1; then
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FTP_CMD="lftp"
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else
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error "FTP客户端安装后仍然不可用"
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fi
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fi
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}
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# 解析命令行参数
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parse_arguments() {
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local password_provided=0
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if [ $# -eq 0 ]; then
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usage
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fi
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# 解析-p参数
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while getopts "p:" opt; do
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case $opt in
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p)
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FTP_PASS="$OPTARG"
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password_provided=1
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;;
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\?)
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usage
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;;
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esac
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done
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shift $((OPTIND -1))
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# 检查密码是否提供
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if [ $password_provided -eq 0 ]; then
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error "必须通过 -p参数 提供FTP密码"
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fi
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# 检查是否有备份目标
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if [ $# -eq 0 ]; then
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error "必须指定至少一个目录或文件进行备份"
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fi
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# 存储要备份的路径
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BACKUP_PATHS=("$@")
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log "密码参数已接收"
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log "备份目标: ${BACKUP_PATHS[*]}"
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}
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# 验证备份路径是否存在
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validate_paths() {
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local invalid_paths=()
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for path in "${BACKUP_PATHS[@]}"; do
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if [ ! -e "$path" ]; then
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warn "路径不存在: $path"
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invalid_paths+=("$path")
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fi
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done
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if [ ${#invalid_paths[@]} -eq ${#BACKUP_PATHS[@]} ]; then
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error "所有指定的备份路径都不存在"
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elif [ ${#invalid_paths[@]} -gt 0 ]; then
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warn "以下路径将被忽略: ${invalid_paths[*]}"
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# 移除无效路径
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local valid_paths=()
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for path in "${BACKUP_PATHS[@]}"; do
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if [ -e "$path" ]; then
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valid_paths+=("$path")
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fi
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done
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BACKUP_PATHS=("${valid_paths[@]}")
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fi
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}
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# 创建备份文件
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create_backup() {
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local timestamp=$(date +'%Y%m%d_%H%M%S')
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BACKUP_FILE="${BACKUP_PREFIX}_${timestamp}.tar.gz"
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log "开始创建备份文件: $BACKUP_FILE"
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# 创建临时目录
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local temp_dir=$(mktemp -d)
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trap 'rm -rf "$temp_dir"' EXIT
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# 复制要备份的文件和目录到临时位置，保持相对路径结构
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for path in "${BACKUP_PATHS[@]}"; do
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if [ -e "$path" ]; then
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local parent_dir=$(dirname "$path")
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local base_name=$(basename "$path")
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if [ "$parent_dir" = "/" ]; then
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# 处理根目录下的文件/目录
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cp -r "$path" "$temp_dir/root_$base_name"
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else
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# 创建父目录结构并复制
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mkdir -p "$temp_dir/$parent_dir"
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cp -r "$path" "$temp_dir/$parent_dir/"
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fi
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fi
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done
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# 创建tar.gz压缩包
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if tar -czf "$BACKUP_FILE" -C "$temp_dir" . 2>/dev/null; then
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log "备份文件创建成功: $BACKUP_FILE ($(du -h "$BACKUP_FILE" | cut -f1))"
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else
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error "创建备份文件失败"
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fi
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}
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# 使用ftp命令上传
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upload_with_ftp() {
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log "使用ftp上传文件..."
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# 创建ftp命令脚本
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local ftp_script=$(mktemp)
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cat > "$ftp_script" << EOF
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open $FTP_SERVER $FTP_PORT
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user $FTP_USER $FTP_PASS
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binary
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mkdir $REMOTE_PATH
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cd $REMOTE_PATH
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put $BACKUP_FILE
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quit
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EOF
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if ftp -n < "$ftp_script" > /tmp/ftp_upload.log 2>&1; then
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log "FTP上传成功"
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rm -f "$ftp_script" "/tmp/ftp_upload.log"
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return 0
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else
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error "FTP上传失败，查看 /tmp/ftp_upload.log 获取详细信息"
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fi
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}
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# 使用lftp命令上传（Alpine Linux）
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upload_with_lftp() {
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log "使用lftp上传文件..."
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if lftp -e "set ftp:ssl-allow no; open $FTP_SERVER; user $FTP_USER '$FTP_PASS'; mkdir -p $REMOTE_PATH; cd $REMOTE_PATH; put $BACKUP_FILE; quit" > /tmp/lftp_upload.log 2>&1; then
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log "LFTP上传成功"
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rm -f "/tmp/lftp_upload.log"
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return 0
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else
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error "LFTP上传失败，查看 /tmp/lftp_upload.log 获取详细信息"
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fi
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}
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# 上传备份文件
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upload_backup() {
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log "开始上传备份文件到 $FTP_SERVER:$REMOTE_PATH"
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case $FTP_CMD in
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"ftp")
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upload_with_ftp
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;;
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"lftp")
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upload_with_lftp
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;;
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*)
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error "不支持的FTP命令: $FTP_CMD"
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;;
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esac
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}
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# 清理临时文件
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cleanup() {
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if [ -f "$BACKUP_FILE" ]; then
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rm -f "$BACKUP_FILE"
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log "已清理本地备份文件: $BACKUP_FILE"
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fi
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}
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# 主函数
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main() {
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log "FTP备份脚本开始执行"
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# 解析参数
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parse_arguments "$@"
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# 验证路径
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validate_paths
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# 检查FTP客户端
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check_ftp_client
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# 创建备份
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create_backup
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# 上传备份
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upload_backup
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# 清理
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cleanup
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log "FTP备份完成!"
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}
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# 脚本入口点
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main "$@" |