72 lines
2.0 KiB
Bash
72 lines
2.0 KiB
Bash
#!/bin/bash
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# 配置参数（请替换为实际URL）
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URL="https://git.nia.ink/brnet/bird_config/raw/branch/master/bird/function/unet.conf" # 替换为你的$url
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TARGET_FILE="/etc/bird/function/unet.conf"
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BACKUP_FILE="${TARGET_FILE}.bak.$(date +%Y%m%d%H%M%S)" # 带时间戳的备份文件
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LOG_FILE="/var/log/update_unet_conf.log"
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# 日志函数
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log() {
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echo "[$(date +%Y%m%d%H%M%S)] $1" >> "$LOG_FILE"
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}
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# 检查root权限
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if [ "$(id -u)" -ne 0 ]; then
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log "错误：必须使用root权限运行脚本（请用sudo）"
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echo "错误：必须使用root权限运行脚本（请用sudo）"
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exit 1
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fi
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# 检查wget是否安装
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if ! command -v wget &> /dev/null; then
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log "错误：未安装wget，请先执行 'sudo apt install wget' 或 'sudo yum install wget' 安装"
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echo "错误：未安装wget，请先安装"
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exit 1
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fi
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# 检查目标文件目录是否存在
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if [ ! -d "$(dirname "$TARGET_FILE")" ]; then
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log "错误：目标目录 $(dirname "$TARGET_FILE") 不存在"
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echo "错误：目标目录不存在"
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exit 1
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fi
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# 备份原文件
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log "开始备份原文件到 $BACKUP_FILE"
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if cp "$TARGET_FILE" "$BACKUP_FILE"; then
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log "备份成功"
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else
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log "错误：备份失败，终止操作"
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echo "错误：备份失败"
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exit 1
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fi
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# 下载并覆盖文件
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log "开始从 $URL 下载文件"
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if wget -q -O "$TARGET_FILE" "$URL"; then # -q 静默模式，-O 指定输出文件
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log "下载成功，已覆盖 $TARGET_FILE"
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else
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log "错误：下载失败，恢复原文件"
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echo "错误：下载失败，正在恢复原文件..."
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mv "$BACKUP_FILE" "$TARGET_FILE" # 恢复备份
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exit 1
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fi
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# 验证文件内容（检查是否为空或乱码）
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if [ ! -s "$TARGET_FILE" ]; then # -s 检查文件非空
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log "错误：下载的文件为空，恢复原文件"
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echo "错误：文件为空，正在恢复原文件..."
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mv "$BACKUP_FILE" "$TARGET_FILE"
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exit 1
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fi
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# （可选）重启bird服务并检查状态
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log "重载bird服务"
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birdc c
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log "脚本执行完毕"
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cat $TARGET_FILE
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cd
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rm update.sh |