90 lines
3.0 KiB
Bash
90 lines
3.0 KiB
Bash
#!/bin/bash
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# chmod +x 02-sysCleanup.sh && ./02-sysCleanup.sh
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# curl -sS -O https://gitea.tohub.top/Share/vps/raw/branch/main/init/02-sysCleanup.sh && chmod +x 02-sysCleanup.sh && ./02-sysCleanup.sh
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# 错误处理：任何命令失败时退出
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set -euo pipefail
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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')] $*"
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}
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log_error() {
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echo "[$(date +'%Y-%m-%d %H:%M:%S')] ERROR: $*" >&2
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}
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log "========== 开始系统清理 =========="
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# 检测操作系统类型
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if [ -f "/etc/debian_version" ]; then
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OS_TYPE="debian"
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elif [ -f "/etc/redhat-release" ]; then
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OS_TYPE="redhat"
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else
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log_error "不支持的操作系统"
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exit 1
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fi
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if [ "$OS_TYPE" = "debian" ]; then
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# 1. 清理无用的软件包
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log "清理不再需要的软件包..."
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apt autoremove --purge -y || log_error "autoremove 失败"
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# 2. 清理 APT 缓存
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log "清理 APT 缓存..."
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apt clean -y || log_error "apt clean 失败"
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apt autoclean -y || log_error "apt autoclean 失败"
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# 3. 清理已卸载但配置文件残留的包（安全检查）
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log "清理残留的配置文件..."
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RC_PACKAGES=$(dpkg -l | awk '/^rc/ {print $2}' || true)
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if [ -n "$RC_PACKAGES" ]; then
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log "找到 $(echo "$RC_PACKAGES" | wc -l) 个残留配置包"
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echo "$RC_PACKAGES" | xargs apt remove --purge -y || log_error "清理残留配置失败"
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else
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log "没有残留的配置文件需要清理"
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fi
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# 4. 清理旧内核（保留当前内核和最新的一个旧内核）
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log "清理旧内核..."
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CURRENT_KERNEL=$(uname -r | sed 's/-generic//;s/-amd64//')
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log "当前内核: $CURRENT_KERNEL"
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# 获取所有已安装的内核
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OLD_KERNELS=$(dpkg -l | awk '/^ii linux-(image|headers)-[0-9]/{print $2}' | grep -v "$CURRENT_KERNEL" | sort -V | head -n -1 || true)
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if [ -n "$OLD_KERNELS" ]; then
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log "发现旧内核（将保留最新的一个旧内核作为备份）:"
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echo "$OLD_KERNELS"
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echo "$OLD_KERNELS" | xargs apt remove --purge -y || log_error "清理旧内核失败"
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log "旧内核清理完成"
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else
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log "没有需要清理的旧内核"
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fi
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elif [ "$OS_TYPE" = "redhat" ]; then
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log "清理 YUM 缓存..."
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yum clean all || log_error "yum clean 失败"
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log "清理旧内核（保留最新的2个内核）..."
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package-cleanup --oldkernels --count=2 -y || log_error "清理旧内核失败"
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fi
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# 5. 清理 journal 日志（保留最近 7 天或 500M）
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log "清理系统日志..."
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if command -v journalctl &> /dev/null; then
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journalctl --rotate || log_error "日志轮转失败"
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journalctl --vacuum-time=7d || log_error "按时间清理日志失败"
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journalctl --vacuum-size=500M || log_error "按大小清理日志失败"
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log "日志清理完成"
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else
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log "journalctl 不可用，跳过日志清理"
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fi
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# 6. 显示清理后的磁盘使用情况
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log "========== 磁盘使用情况 =========="
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df -h / || true
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log "========== 系统清理完成 =========="
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