docs(blog): 新增 Linux 内存优化指南并更新工作区侧边栏

src/programming/linux/Linux_Mint/scripts/expand_swap.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+
+# Swap空间扩展脚本
+# 将 /swapfile 从 8GB 扩展到 24GB
+
+set -e  # 遇到错误立即退出
+
+echo "=========================================="
+echo "Swap空间扩展脚本"
+echo "=========================================="
+echo ""
+
+# 颜色定义
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# 检查是否有sudo权限
+if ! sudo -n true 2>/dev/null; then
+    echo -e "${YELLOW}此脚本需要sudo权限，请输入密码${NC}"
+fi
+
+echo "步骤 1/7: 显示当前swap状态"
+echo "----------------------------------------"
+swapon --show
+free -h
+echo ""
+
+read -p "确认要继续吗？这将临时关闭swap空间 (y/n): " -n 1 -r
+echo ""
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+    echo -e "${RED}操作已取消${NC}"
+    exit 1
+fi
+
+echo ""
+echo "步骤 2/7: 关闭现有 /swapfile"
+echo "----------------------------------------"
+sudo swapoff /swapfile
+echo -e "${GREEN}✓ 已关闭 /swapfile${NC}"
+echo ""
+
+echo "步骤 3/7: 删除旧的 swapfile"
+echo "----------------------------------------"
+sudo rm /swapfile
+echo -e "${GREEN}✓ 已删除旧文件${NC}"
+echo ""
+
+echo "步骤 4/7: 创建新的 24GB swapfile"
+echo "----------------------------------------"
+echo "使用 fallocate 快速创建（约需10-30秒）..."
+sudo fallocate -l 24G /swapfile
+echo -e "${GREEN}✓ 已创建 24GB swapfile${NC}"
+echo ""
+
+echo "步骤 5/7: 设置文件权限"
+echo "----------------------------------------"
+sudo chmod 600 /swapfile
+echo -e "${GREEN}✓ 权限已设置为 600${NC}"
+echo ""
+
+echo "步骤 6/7: 格式化为swap"
+echo "----------------------------------------"
+sudo mkswap /swapfile
+echo -e "${GREEN}✓ 格式化完成${NC}"
+echo ""
+
+echo "步骤 7/7: 启用新的swapfile"
+echo "----------------------------------------"
+sudo swapon /swapfile
+echo -e "${GREEN}✓ 已启用新的swapfile${NC}"
+echo ""
+
+echo "=========================================="
+echo "扩展完成！当前swap状态："
+echo "=========================================="
+swapon --show
+echo ""
+free -h
+echo ""
+
+# 检查 /etc/fstab 配置
+echo "----------------------------------------"
+echo "检查 /etc/fstab 配置..."
+echo "----------------------------------------"
+if grep -q "^/swapfile" /etc/fstab; then
+    echo -e "${GREEN}✓ /etc/fstab 已包含 swapfile 配置${NC}"
+else
+    echo -e "${YELLOW}⚠ /etc/fstab 中未找到 swapfile 配置${NC}"
+    read -p "是否添加到 /etc/fstab 以确保重启后生效？(y/n): " -n 1 -r
+    echo ""
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
+        echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab
+        echo -e "${GREEN}✓ 已添加到 /etc/fstab${NC}"
+    fi
+fi
+
+echo ""
+echo "=========================================="
+echo -e "${GREEN}所有操作完成！${NC}"
+echo "=========================================="
+echo "总Swap空间: ~31GB (24GB swapfile + 7.3GB zram)"
+echo ""