From a362c0ce528f7a10ccef8982cde4738c26505202 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=90=8C=E5=B0=8F=E8=8A=BD?= <codex@localhost>
Date: Sat, 4 Apr 2026 13:24:58 +0800
Subject: [PATCH] Sync bash project

---
 AGENTS.md                          | 376 ++++++++++++++++
 README.md                          | 293 +++++++++++++
 login-info/install_login-info.sh   | 161 +++++++
 login-info/login-info.sh           | 681 +++++++++++++++++++----------
 login-info/uninstall_login-info.sh |  45 ++
 readme.md                          |   0
 6 files changed, 1328 insertions(+), 228 deletions(-)
 create mode 100644 AGENTS.md
 create mode 100644 README.md
 create mode 100644 login-info/install_login-info.sh
 create mode 100644 login-info/uninstall_login-info.sh
 delete mode 100644 readme.md

diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..fc821c0
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,376 @@
+# AGENTS.md - Agent Coding Guidelines
+
+This document provides guidelines for agents working in this repository.
+
+---
+
+## Project Overview
+
+This is a **Bash shell script** repository containing multiple independent utilities for Linux server management. Each subdirectory is a separate project.
+
+### Subprojects
+
+| Directory | Description |
+|-----------|-------------|
+| `port-info/` | Linux port information display (TCP, UDP, HTTP services) |
+| `docker-info/` | Docker and server information collector |
+| `database-info/` | Database information collector (WIP) |
+| `systemctl-info/` | Systemd/systemctl detailed information (v2.0 modular) |
+| `filebrowser/` | FileBrowser installation/uninstall scripts |
+| `frp/` | FRP (Fast Reverse Proxy) management scripts |
+| `openlist/` | OpenList installation/management scripts |
+| `mengyamonitor/` | MengyanMonitor installation scripts |
+| `user-manager/` | User management utility |
+| `change-mirror/` | Mirror changing and Docker installation scripts |
+| `login-info/` | Login information display |
+| `ssh/` | SSH key management scripts |
+
+---
+
+## Build / Lint / Test Commands
+
+### Running Scripts
+
+```bash
+# Make executable and run
+chmod +x <script>.sh
+./<script>.sh
+
+# Or run with bash
+bash <script>.sh
+```
+
+### Linting
+
+Use **shellcheck** for static analysis of all Bash scripts:
+
+```bash
+# Install shellcheck (if not present)
+apt-get install shellcheck          # Debian/Ubuntu
+yum install epel-release && yum install ShellCheck  # RHEL/CentOS
+
+# Run shellcheck on a specific script
+shellcheck port-info/port_info.sh
+shellcheck docker-info/docker-info.sh
+
+# Run with specific severity levels
+shellcheck -S error <script>.sh    # Errors only
+shellcheck -S warning <script>.sh  # Warnings and errors
+
+# Check all scripts in repository
+shellcheck port-info/*.sh docker-info/*.sh systemctl-info/systemctl-info \
+  filebrowser/*.sh frp/*.sh openlist/*.sh mengyamonitor/*.sh user-manager/*.sh \
+  change-mirror/*.sh login-info/*.sh ssh/*.sh
+```
+
+### Syntax Validation
+
+```bash
+# Check bash syntax without executing
+bash -n <script>.sh
+
+# Validate all scripts
+for f in **/*.sh; do bash -n "$f" && echo "OK: $f"; done
+```
+
+### Testing a Single Function
+
+Bash doesn't have traditional unit tests. Test functions interactively:
+
+```bash
+# Source the script and test specific functions
+source <script>.sh
+function_name argument    # Test specific function
+
+# Example: test port-to-service lookup
+source port-info/port_info.sh
+get_service_name 80       # Should output: HTTP
+```
+
+### Running Full Scripts
+
+```bash
+# Port info
+bash port-info/port_info.sh
+
+# Docker info (requires Docker installed)
+bash docker-info/docker-info.sh
+
+# Systemctl info (requires root for full functionality)
+sudo bash systemctl-info/systemctl-info
+```
+
+---
+
+## Code Style Guidelines
+
+### General Bash Style
+
+#### Shebang and Error Handling
+- Always use `#!/usr/bin/env bash` or `#!/bin/bash`
+- Add `set -euo pipefail` at the start of scripts for safety:
+  - `-e`: Exit on error
+  - `-u`: Exit on undefined variables
+  - `-o pipefail`: Pipeline fails if any command fails
+
+#### Formatting
+- **Indentation**: 4 spaces (no tabs)
+- **Line length**: Keep lines under 100 characters
+- **Quotes**: Always quote variables: `"$variable"` not `$variable`
+- Use `printf` over `echo` for complex output
+
+### Naming Conventions
+
+```bash
+# Functions - snake_case
+print_header() { }
+get_server_info() { }
+check_root() { }
+
+# Variables - descriptive names
+local container_output
+local cpu_count
+local total_mem
+
+# Constants - UPPER_CASE
+readonly RED='\033[0;31m'
+readonly HEADER_COLOR="${BRIGHT_CYAN}"
+```
+
+### Variable Naming Patterns
+
+- **Constants** (colors, separators): UPPERCASE with underscores, e.g., `RED`, `SEPARATOR`
+- **Global variables**: UPPERCASE, e.g., `PORT_CMD`
+- **Local variables in functions**: lowercase with underscores, e.g., `local port=$1`
+- **Function names**: lowercase with underscores, e.g., `check_commands()`
+
+### Function Structure
+
+```bash
+# Good function definition
+function_name() {
+    local arg1=$1
+    local arg2=$2
+    
+    # function body
+    
+    return 0  # Always return explicit status
+}
+
+# Document functions with comments
+# 获取服务器信息
+get_server_info() {
+    print_header "服务器信息"
+    local cpu_count=$(grep -c '^processor' /proc/cpuinfo)
+    print_key_value "CPU核心数" "$cpu_count"
+}
+```
+
+### Color Variables
+
+Define colors at the top of the script using ANSI escape codes:
+
+```bash
+# Basic colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'  # No Color - always reset at end
+
+# Bright colors
+BRIGHT_CYAN='\033[1;36m'
+BRIGHT_MAGENTA='\033[1;35m'
+```
+
+### Error Handling
+
+```bash
+# Check command existence before use
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+if ! command_exists docker; then
+    print_error "Docker未安装"
+    exit 1
+fi
+
+# Use proper exit codes
+if [ "$?" -ne 0 ]; then
+    echo -e "${RED}Error: command failed${NC}" >&2
+    exit 1
+fi
+```
+
+### Input Handling
+
+- Prefer arguments over interactive input
+- Validate inputs before processing
+- Use `local` for all function parameters
+- Check for required arguments
+
+### String Comparisons
+
+```bash
+# String equality
+if [ "$var" = "value" ]; then
+    # ...
+fi
+
+# Numeric comparison
+if [ "$num" -eq 0 ]; then
+    # ...
+fi
+
+# Regex matching
+if [[ "$port" =~ ^[0-9]+$ ]]; then
+    # ...
+fi
+```
+
+### Common Patterns
+
+#### Command Availability Check
+```bash
+if command -v ss &> /dev/null; then
+    PORT_CMD="ss"
+elif command -v netstat &> /dev/null; then
+    PORT_CMD="netstat"
+else
+    echo -e "${RED}Error: ss or netstat not found${NC}"
+    exit 1
+fi
+```
+
+#### Reading Lines Safely
+```bash
+while IFS= read -r line; do
+    # process line
+done < <(command)
+```
+
+#### Safe Variable Usage
+- Always quote variables: `"$var"` not `$var`
+- Use `${var}` for clarity in complex expressions
+- Initialize variables before use
+
+### Shellcheck Compliance
+
+Run `shellcheck` and fix all warnings. Common issues:
+
+- **SC2086**: Quote variables to prevent word splitting
+- **SC2166**: Use `&&` instead of `-a` in test expressions
+- **SC2027**: Quote strings containing newlines
+- **SC2248**: Prefer printf over echo
+- **SC1090**: Can't follow non-constant source (use explicit paths)
+
+---
+
+## Output Patterns
+
+Use helper functions for consistent output:
+
+```bash
+print_header()    # Boxed titles
+print_section()   # Section headers with arrows
+print_key_value() # Key: Value pairs
+print_success()   # Green checkmark
+print_warning()   # Yellow warning
+print_error()     # Red X
+```
+
+---
+
+## Testing Checklist
+
+Before submitting changes:
+
+- [ ] Run `shellcheck <script>.sh` with no warnings
+- [ ] Run `bash -n <script>.sh` for syntax check
+- [ ] Test on a system with required dependencies
+- [ ] Test on a system without optional dependencies (graceful degradation)
+- [ ] Verify all color output displays correctly
+- [ ] Check that tables align properly
+
+---
+
+## Documentation
+
+- Use Chinese comments to match existing codebase style (most scripts are Chinese-language)
+- Add section separators: `#===============================================================================`
+- Document function purpose before definition
+- Include usage information in comments
+- Document dependencies clearly
+
+---
+
+## File Extensions
+
+- Bash scripts: `.sh`
+- Executable scripts may have no extension
+- Service files: `.service`
+
+---
+
+## Subproject Guidelines
+
+For specific subproject guidelines, see the AGENTS.md files in each subdirectory:
+
+- [port-info/AGENTS.md](port-info/AGENTS.md)
+- [docker-info/AGENTS.md](docker-info/AGENTS.md)
+- [systemctl-info/AGENTS.md](systemctl-info/AGENTS.md)
+
+---
+
+## Dependencies
+
+### Required (Common)
+- `bash` (4.0+)
+- Standard POSIX utilities: `awk`, `grep`, `sed`, `sort`, `uniq`
+
+### Optional
+- `docker` - for docker-info script
+- `systemctl`, `journalctl` - for systemctl-info script
+- `shellcheck` - for linting
+- `jq` - for better JSON parsing
+
+---
+
+## Security Notes
+
+- Some scripts require root/sudo for full functionality
+- Always validate user input if adding new features
+- Use proper quoting to prevent word splitting and globbing
+- Sanitize any data passed to `eval` or similar dangerous operations
+- Never hardcode credentials or sensitive data
+
+---
+
+## Common Tasks
+
+### Adding a New Port Service (port-info)
+Edit `get_service_name()` function:
+```bash
+get_service_name() {
+    local port=$1
+    case $port in
+        80)     echo "HTTP" ;;
+        443)    echo "HTTPS" ;;
+        3306)   echo "MySQL" ;;
+        9000)   echo "PHP-FPM" ;;
+        *)      echo "未知" ;;
+    esac
+}
+```
+
+### Adding a New Module (systemctl-info)
+1. Create a new function following existing patterns: `module_xxx()`
+2. Add function to the module list array
+3. Use consistent color scheme and formatting
+4. Add documentation in the AGENTS.md
+
+### Adding a New Utility
+1. Create new directory if it's a significant project
+2. Follow the code style guidelines above
+3. Create an AGENTS.md for the subproject
+4. Add to the project table in this file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..84e842a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,293 @@
+# Linux Server Toolkit (Bash)
+
+> 一组面向 Linux 服务器日常运维的 Bash 工具脚本。  
+> 仓库内每个子目录都是独立工具，可单独使用、单独维护。
+
+![Bash](https://img.shields.io/badge/Shell-Bash-121011?logo=gnubash)
+![Platform](https://img.shields.io/badge/Platform-Linux-2D2D2D?logo=linux)
+![Status](https://img.shields.io/badge/Status-Active-success)
+
+## 目录
+
+- [项目定位](#项目定位)
+- [工具清单](#工具清单)
+- [仓库结构](#仓库结构)
+- [快速开始](#快速开始)
+- [核心工具使用示例](#核心工具使用示例)
+- [完整工具说明](#完整工具说明)
+- [依赖与兼容性](#依赖与兼容性)
+- [开发与质量检查](#开发与质量检查)
+- [常见问题](#常见问题)
+- [安全说明](#安全说明)
+- [贡献指南](#贡献指南)
+- [许可证](#许可证)
+
+## 项目定位
+
+这个仓库用于集中管理常见服务器管理脚本，目标是：
+
+- 开箱即用：脚本直接运行，不依赖复杂框架。
+- 功能解耦：每个目录一个工具，互不耦合。
+- 运维友好：输出清晰、彩色提示、错误处理明确。
+- 可维护：脚本整体遵循统一 Bash 规范（见 `AGENTS.md`）。
+
+适用场景：
+
+- 新服务器初始化与巡检
+- Docker / Systemd 状态排查
+- 端口占用与服务健康检查
+- 辅助部署 FRP、OpenList、FileBrowser 等服务
+
+## 工具清单
+
+| 目录 | 主要脚本 | 用途 |
+|---|---|---|
+| `port-info/` | `port_info.sh` | 查看 TCP/UDP 端口与服务映射 |
+| `docker-info/` | `docker-info.sh` | 收集 Docker 和主机信息 |
+| `database-info/` | `-` | 数据库信息采集/诊断（预留，暂无脚本） |
+| `systemctl-info/` | `systemctl-info` | Systemd 全量状态与模块化诊断 |
+| `filebrowser/` | `install_filebrowser.sh` | FileBrowser 安装/卸载 |
+| `frp/` | `install_frp.sh` | FRP 安装、启停、卸载 |
+| `openlist/` | `install_openlist.sh` | OpenList 安装、启停、卸载 |
+| `mengyamonitor/` | `install_mengyamonitor.sh` | 监控探针安装/卸载 |
+| `user-manager/` | `user-manager.sh` | Linux 用户管理 |
+| `change-mirror/` | `ChangeMirrors.sh` | 系统换源与 Docker 安装辅助 |
+| `login-info/` | `login-info.sh` | 登录信息展示 |
+| `ssh/` | `*.sh` | SSH 密钥相关脚本集合 |
+
+## 仓库结构
+
+```text
+.
+├── AGENTS.md
+├── README.md
+├── port-info/
+├── docker-info/
+├── database-info/
+├── systemctl-info/
+├── filebrowser/
+├── frp/
+├── openlist/
+├── mengyamonitor/
+├── user-manager/
+├── change-mirror/
+├── login-info/
+└── ssh/
+```
+
+## 快速开始
+
+### 1) 克隆仓库
+
+```bash
+git clone <your-repo-url>
+cd bash
+```
+
+### 2) 运行任意脚本
+
+```bash
+# 方式 A：直接用 bash
+bash path/to/script.sh
+
+# 方式 B：赋予可执行权限后运行
+chmod +x path/to/script.sh
+./path/to/script.sh
+
+# 方式 C：需要管理员权限时
+sudo bash path/to/script.sh
+```
+
+### 3) 推荐先做语法检查
+
+```bash
+bash -n path/to/script.sh
+```
+
+## 核心工具使用示例
+
+### 端口信息
+
+```bash
+bash port-info/port_info.sh
+```
+
+输出重点：TCP/UDP 监听端口、常见服务名映射（HTTP/HTTPS/MySQL/SSH 等）。
+
+### Docker 信息
+
+```bash
+bash docker-info/docker-info.sh
+```
+
+输出重点：容器、镜像、网络、卷，以及主机基础状态。
+
+### Systemctl 诊断
+
+```bash
+sudo bash systemctl-info/systemctl-info
+```
+
+输出重点：
+
+- Systemd 版本与状态
+- 失败服务与被屏蔽服务
+- Timer/Socket/Target/Mount/Path/Device 单元
+- 依赖关系、Journal 摘要、Cgroup、性能与电源信息
+
+## 完整工具说明
+
+### `filebrowser/`
+
+```bash
+bash filebrowser/install_filebrowser.sh
+bash filebrowser/uninstall_filebrowser.sh
+```
+
+### `frp/`
+
+```bash
+bash frp/install_frp.sh
+bash frp/start_frp.sh
+bash frp/stopkill_frp.sh
+bash frp/uninstall_frp.sh
+```
+
+### `openlist/`
+
+```bash
+bash openlist/install_openlist.sh
+bash openlist/start_openlist.sh
+bash openlist/stopkill_openlist.sh
+bash openlist/uninstall_openlist.sh
+```
+
+### `mengyamonitor/`
+
+```bash
+bash mengyamonitor/install_mengyamonitor.sh
+bash mengyamonitor/uninstall_mengyamonitor.sh
+```
+
+### `user-manager/`
+
+```bash
+bash user-manager/user-manager.sh
+```
+
+### `change-mirror/`
+
+```bash
+bash change-mirror/ChangeMirrors.sh
+bash change-mirror/DockerInstallation.sh
+bash change-mirror/DockerInstallationLite.sh
+```
+
+### `login-info/`
+
+```bash
+# 手动查看
+bash login-info/login-info.sh
+bash login-info/login-info.sh --full
+
+# 安装为 SSH 登录自动展示（写入 /etc/profile.d/）
+sudo bash login-info/install_login-info.sh           # 默认 summary（推荐）
+sudo bash login-info/install_login-info.sh --mode full
+sudo bash login-info/uninstall_login-info.sh
+```
+
+禁用自动展示（可选）：
+
+- 仅当前用户：`touch ~/.login-info-disable` 或 `export LOGIN_INFO_DISABLE=1`
+- 全局：`sudo mkdir -p /etc/login-info && sudo touch /etc/login-info/disable`
+
+### `ssh/`
+
+```bash
+bash ssh/alycd.sh
+bash ssh/alyxg.sh
+bash ssh/bigmengya.sh
+bash ssh/mengyathree.sh
+bash ssh/redmi.sh
+bash ssh/smallmengya.sh
+```
+
+## 依赖与兼容性
+
+### 基础依赖
+
+- Linux（Ubuntu / Debian / CentOS 等）
+- Bash 4.0+
+- 常见系统工具：`awk` `grep` `sed` `sort` `uniq`
+
+### 按工具可选依赖
+
+- 端口工具：`ss` 或 `netstat`
+- Docker 工具：`docker`
+- Systemd 工具：`systemctl` `journalctl`
+- 推荐安装：`shellcheck`（静态检查）
+
+## 开发与质量检查
+
+仓库是 Bash 脚本项目，没有编译步骤，建议最少执行以下检查：
+
+```bash
+# 语法检查
+bash -n port-info/port_info.sh
+
+# 静态检查
+shellcheck port-info/port_info.sh
+shellcheck docker-info/docker-info.sh
+shellcheck systemctl-info/systemctl-info
+```
+
+批量检查示例：
+
+```bash
+for f in **/*.sh; do
+  bash -n "$f" || exit 1
+done
+```
+
+更多开发约束请参考根目录 `AGENTS.md`。
+
+## 常见问题
+
+### 1) 提示 `ss` 或 `netstat` 不存在
+
+```bash
+sudo apt-get update
+sudo apt-get install -y net-tools iproute2
+```
+
+### 2) Docker 信息脚本运行失败
+
+- 确认 Docker 已安装并运行：`systemctl status docker`
+- 确认当前用户有权限访问 Docker socket（或直接使用 `sudo`）
+
+### 3) `systemctl-info` 信息不完整
+
+- 请使用 root 权限运行：`sudo bash systemctl-info/systemctl-info`
+
+## 安全说明
+
+- 本仓库部分脚本会执行安装、服务管理、系统配置修改操作。
+- 请先阅读对应脚本内容，再在生产环境执行。
+- 不要在不可信环境中直接运行来源不明脚本。
+
+## 贡献指南
+
+欢迎提交 Issue / PR。
+
+1. Fork 本仓库
+2. 创建分支：`git checkout -b feature/your-feature`
+3. 提交修改：`git commit -m "feat: add your feature"`
+4. 推送分支：`git push origin feature/your-feature`
+5. 发起 Pull Request
+
+建议在提交前运行 `shellcheck` 和 `bash -n`。
+
+## 许可证
+
+当前仓库未包含明确的 License 文件。  
+如需开源发布，建议补充 `LICENSE`（例如 MIT / Apache-2.0）。
diff --git a/login-info/install_login-info.sh b/login-info/install_login-info.sh
new file mode 100644
index 0000000..e042aac
--- /dev/null
+++ b/login-info/install_login-info.sh
@@ -0,0 +1,161 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+#===============================================================================
+# login-info 安装脚本
+# 作用:
+#   1) 安装命令: /usr/local/bin/login-info
+#   2) 写入登录启动脚本: /etc/profile.d/smy-login-info.sh
+#
+# 用法:
+#   sudo bash login-info/install_login-info.sh
+#   sudo bash login-info/install_login-info.sh --mode full
+#   sudo bash login-info/install_login-info.sh --all
+#
+# 禁用(用户级):
+#   touch ~/.login-info-disable
+#   或: export LOGIN_INFO_DISABLE=1
+#
+# 禁用(全局):
+#   sudo mkdir -p /etc/login-info
+#   sudo touch /etc/login-info/disable
+#===============================================================================
+
+log() { printf '[login-info-安装] %s\n' "$*" >&2; }
+fail() { log "错误: $*"; exit 1; }
+
+require_root() {
+    if [ "${EUID:-$(id -u)}" -ne 0 ]; then
+        fail "请使用 root 权限运行 (sudo bash login-info/install_login-info.sh)"
+    fi
+}
+
+main() {
+    local default_mode="summary"
+    local ssh_only="1"
+
+    while [ $# -gt 0 ]; do
+        case "$1" in
+            --mode)
+                shift
+                [ $# -gt 0 ] || fail "--mode 需要参数: summary|full"
+                default_mode=$1
+                ;;
+            --mode=*)
+                default_mode=${1#*=}
+                ;;
+            --ssh-only)
+                ssh_only="1"
+                ;;
+            --all)
+                ssh_only="0"
+                ;;
+            -h|--help)
+                cat <<'EOF'
+用法:
+  sudo bash login-info/install_login-info.sh [--mode summary|full] [--ssh-only|--all]
+EOF
+                return 0
+                ;;
+            *)
+                fail "未知参数: $1"
+                ;;
+        esac
+        shift
+    done
+
+    case "$default_mode" in
+        summary|full) ;;
+        *) fail "--mode 仅支持: summary|full" ;;
+    esac
+
+    require_root
+
+    local script_dir script_src bin_path profile_hook
+    script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+    script_src="${script_dir}/login-info.sh"
+    bin_path="/usr/local/bin/login-info"
+    profile_hook="/etc/profile.d/smy-login-info.sh"
+
+    [ -f "$script_src" ] || fail "未找到脚本: $script_src"
+
+    mkdir -p "$(dirname "$bin_path")"
+    mkdir -p "$(dirname "$profile_hook")"
+
+    log "安装命令到: $bin_path"
+    if command -v install >/dev/null 2>&1; then
+        install -m 0755 "$script_src" "$bin_path"
+    else
+        cp "$script_src" "$bin_path"
+        chmod 0755 "$bin_path"
+    fi
+
+    log "写入登录启动脚本: $profile_hook"
+    cat >"$profile_hook" <<EOF
+# /etc/profile.d/smy-login-info.sh
+# 由 login-info 安装脚本生成：SSH 登录后自动展示服务器信息
+#
+# 禁用：
+#   - export LOGIN_INFO_DISABLE=1
+#   - touch ~/.login-info-disable
+#   - touch /etc/login-info/disable
+#
+# 覆盖默认行为：
+#   - export LOGIN_INFO_MODE=summary|full
+#   - export LOGIN_INFO_SSH_ONLY=1|0
+
+# 仅在交互式且有 TTY 时运行（避免 scp/sftp 等非交互场景）
+case "\$-" in
+    *i*) ;;
+    *) return 0 2>/dev/null || exit 0 ;;
+esac
+
+if ! [ -t 1 ]; then
+    return 0 2>/dev/null || exit 0
+fi
+
+# 避免重复输出
+if [ -n "\${LOGIN_INFO_SHOWN:-}" ]; then
+    return 0 2>/dev/null || exit 0
+fi
+
+# 禁用开关
+if [ -n "\${LOGIN_INFO_DISABLE:-}" ]; then
+    return 0 2>/dev/null || exit 0
+fi
+
+if [ -f "/etc/login-info/disable" ]; then
+    return 0 2>/dev/null || exit 0
+fi
+
+if [ -n "\${HOME:-}" ] && [ -f "\${HOME}/.login-info-disable" ]; then
+    return 0 2>/dev/null || exit 0
+fi
+
+# SSH-only（默认开启，可通过环境变量覆盖）
+__smy_login_info_ssh_only="\${LOGIN_INFO_SSH_ONLY:-${ssh_only}}"
+if [ "\$__smy_login_info_ssh_only" = "1" ]; then
+    if [ -z "\${SSH_CONNECTION:-}" ] && [ -z "\${SSH_TTY:-}" ]; then
+        return 0 2>/dev/null || exit 0
+    fi
+fi
+
+export LOGIN_INFO_SHOWN=1
+
+__smy_login_info_mode="\${LOGIN_INFO_MODE:-${default_mode}}"
+if command -v login-info >/dev/null 2>&1; then
+    if [ "\$__smy_login_info_mode" = "full" ]; then
+        login-info --full || true
+    else
+        login-info --summary || true
+    fi
+fi
+EOF
+
+    chmod 0644 "$profile_hook"
+
+    log "安装完成"
+    log "提示: 重新登录 SSH 即可看到信息；或手动运行: login-info --full"
+}
+
+main "$@"
diff --git a/login-info/login-info.sh b/login-info/login-info.sh
index 5c893eb..76f6182 100755
--- a/login-info/login-info.sh
+++ b/login-info/login-info.sh
@@ -1,267 +1,492 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -euo pipefail
 
-# 用法示例：curl -fsSL "https://pan.shumengya.top/d/scripts/login_info.sh" | bash
+#===============================================================================
+# 登录信息展示脚本 (Login Info)
+# 用途: 快速查看系统/资源/网络/Docker 等信息，适合作为 SSH 登录后提示。
+#
+# 手动运行:
+#   bash login-info/login-info.sh
+#
+# 安装为登录自动展示:
+#   sudo bash login-info/install_login-info.sh
+#
+# 环境变量:
+#   LOGIN_INFO_MODE=summary|full      # 默认 summary
+#   LOGIN_INFO_COLOR=auto|always|never # 默认 auto
+#===============================================================================
 
-# --- 精心选择的颜色定义 ---
-NONE='\033[00m'
-BOLD='\033[1m'
+usage() {
+    local prog
+    prog=${0##*/}
 
-# 主题色 (可根据喜好调整)
-# 可以选择一个主色调，例如蓝色系或绿色系
-# 这里我们尝试用青色作为标题，黄色作为关键信息，白色作为次要信息
-TITLE_COLOR='\033[01;36m' # 亮青色 (Bold Cyan)
-INFO_COLOR='\033[01;33m'  # 亮黄色 (Bold Yellow)
-VALUE_COLOR='\033[00;37m' # 白色 (White)
-LABEL_COLOR='\033[00;32m' # 绿色 (Green) - 用于标签
-SUBTLE_COLOR='\033[01;30m' # 深灰色/亮黑色 (Bold Black / Dark Gray) - 用于分隔符或不重要信息
-BLUE_COLOR='\033[01;34m'  # 亮蓝色 (Bold Blue)
-ORANGE_COLOR='\033[01;33m' # 亮黄色 (在16色终端中常作为橙色) - 使用 INFO_COLOR 相同的代码
+    cat <<EOF
+用法:
+  ${prog} [--summary|--full] [--no-docker] [--no-color] [--help]
 
+说明:
+  --summary     快速模式(默认)，适合登录时自动展示
+  --full        详细模式(包含 GPU/磁盘明细/软件包统计等)
+  --no-docker   不显示 Docker 信息
+  --no-color    禁用颜色输出
+EOF
+}
 
+has_cmd() { command -v "$1" >/dev/null 2>&1; }
 
+init_colors() {
+    local color_mode=${LOGIN_INFO_COLOR:-auto}
 
-# --- 设备名称和欢迎 ---
-HOSTNAME_TEXT=$(hostname) # 如果不再需要显示hostname，可以注释掉或删除这行
+    case "$color_mode" in
+        auto|always|never) ;;
+        *) color_mode=auto ;;
+    esac
 
-# --- 系统概览 ---
-OS_INFO=$(lsb_release -ds 2>/dev/null || echo "N/A")
-KERNEL_VERSION=$(uname -sr 2>/dev/null || echo "N/A")
-BOOT_TIME=$(uptime -s 2>/dev/null || who -b | awk '{print $3, $4}')
-UPTIME=$(uptime -p 2>/dev/null | sed 's/up //')
-LOAD_AVG=$(uptime 2>/dev/null | awk -F'load average: ' '{print $2}')
-
-echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
-echo -e "${TITLE_COLOR}${BOLD}系统概览${NONE}"
-echo -e "  ${LABEL_COLOR}系统名称:${NONE} ${VALUE_COLOR}$(uname -a)${NONE}"
-echo -e "  ${LABEL_COLOR}操作系统:${NONE} ${VALUE_COLOR}$OS_INFO${NONE}"
-echo -e "  ${LABEL_COLOR}内核版本:${NONE} ${VALUE_COLOR}$KERNEL_VERSION${NONE}"
-echo -e "  ${LABEL_COLOR}启动时间:${NONE} ${VALUE_COLOR}$BOOT_TIME${NONE}"
-echo -e "  ${LABEL_COLOR}运行时间:${NONE} ${VALUE_COLOR}$UPTIME${NONE}"
-echo -e "  ${LABEL_COLOR}平均负载:${NONE} ${VALUE_COLOR}$LOAD_AVG${NONE}"
-echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
-
-
-
-# --- 硬件资源 ---
-# 获取 CPU 型号，处理可能的多行输出，只取第一行，并去除首尾空格
-CPU_MODEL=$(grep "model name" /proc/cpuinfo | head -n 1 | awk -F ':' '{print $2}' | sed 's/^[ \t]*//;s/[ \t]*$//' || echo "N/A")
-CPU_CORES=$(grep -c "processor" /proc/cpuinfo 2>/dev/null || echo "N/A")
-# CPU 温度 (尽可能兼容更多机型)
-CPU_TEMP=""
-# 定义获取CPU温度的函数
-get_cpu_temp() {
-    local temp_c=""
-    
-    # 1. 尝试使用 sensors 命令 (如果安装了 lm-sensors)
-    if command -v sensors &> /dev/null; then
-        # 尝试匹配常见的CPU温度标签
-        # Package id 0: Intel/AMD 多核封装温度
-        # Tctl/Tdie: AMD Ryzen
-        # Core 0: Intel Core
-        # cpu_thermal: 树莓派/通用
-        # Composite: 部分嵌入式设备
-        temp_c=$(sensors | grep -iE '^(package id 0|tctl|tdie|core 0|cpu_thermal|composite|temp1):' | head -n 1 | awk '{print $2}' | tr -d '+°C')
-        if [ -n "$temp_c" ]; then
-            echo "$temp_c"
-            return
+    local enable_color=0
+    if [ "$color_mode" = "always" ]; then
+        enable_color=1
+    elif [ "$color_mode" = "never" ] || [ -n "${NO_COLOR:-}" ]; then
+        enable_color=0
+    else
+        if [ -t 1 ] && [ "${TERM:-}" != "dumb" ]; then
+            enable_color=1
         fi
     fi
 
-    # 2. 尝试读取 /sys/class/thermal/thermal_zone*
-    # 优先查找 x86_pkg_temp (Intel) 或 k10temp (AMD) 或 cpu-thermal (ARM) 或 acpitz
-    for zone in /sys/class/thermal/thermal_zone*; do
-        [ -e "$zone/type" ] || continue
-        type=$(cat "$zone/type")
-        if [[ "$type" == "x86_pkg_temp" || "$type" == "k10temp" || "$type" == "cpu-thermal" || "$type" == "acpitz" ]]; then
-             if [ -r "$zone/temp" ]; then
-                 temp_raw=$(cat "$zone/temp")
-                 # 转换为摄氏度 (除以1000)
-                 if [ "$temp_raw" -gt 0 ] 2>/dev/null; then
-                     awk "BEGIN {printf \"%.1f\", $temp_raw/1000}"
-                     return
-                 fi
-             fi
+    if [ "$enable_color" -eq 1 ]; then
+        C_RESET='\033[0m'
+        C_BOLD='\033[1m'
+        C_TITLE='\033[1;36m'
+        C_INFO='\033[1;33m'
+        C_VALUE='\033[0;37m'
+        C_LABEL='\033[0;32m'
+        C_SUBTLE='\033[1;30m'
+        C_BLUE='\033[1;34m'
+        C_RED='\033[0;31m'
+    else
+        C_RESET=''
+        C_BOLD=''
+        C_TITLE=''
+        C_INFO=''
+        C_VALUE=''
+        C_LABEL=''
+        C_SUBTLE=''
+        C_BLUE=''
+        C_RED=''
+    fi
+
+    HR='───────────────────────────────────────────────────────────────────────────────'
+}
+
+print_hr() { printf '%b%s%b\n' "${C_SUBTLE}" "${HR}" "${C_RESET}"; }
+print_title() { printf '%b%s%b\n' "${C_TITLE}${C_BOLD}" "$1" "${C_RESET}"; }
+print_kv() { printf '  %b%s:%b %b%s%b\n' "${C_LABEL}" "$1" "${C_RESET}" "${C_VALUE}" "$2" "${C_RESET}"; }
+print_kv_info() { printf '  %b%s:%b %b%s%b\n' "${C_LABEL}" "$1" "${C_RESET}" "${C_INFO}" "$2" "${C_RESET}"; }
+
+format_kb() {
+    local kb=${1:-}
+    case "$kb" in
+        ''|*[!0-9]*) printf 'N/A'; return 0 ;;
+    esac
+
+    if [ "$kb" -ge 1048576 ]; then
+        awk -v v="$kb" 'BEGIN{printf "%.1fGiB", v/1048576}'
+    elif [ "$kb" -ge 1024 ]; then
+        awk -v v="$kb" 'BEGIN{printf "%.1fMiB", v/1024}'
+    else
+        printf '%sKiB' "$kb"
+    fi
+}
+
+get_os_pretty_name() {
+    local os=''
+
+    if has_cmd lsb_release; then
+        os=$(lsb_release -ds 2>/dev/null || true)
+        os=${os#\"}
+        os=${os%\"}
+    fi
+
+    if [ -z "$os" ] && [ -r /etc/os-release ]; then
+        os=$(
+            awk -F= '
+                $1=="PRETTY_NAME"{
+                    gsub(/^"/,"",$2); gsub(/"$/,"",$2);
+                    print $2; exit
+                }' /etc/os-release 2>/dev/null || true
+        )
+    fi
+
+    printf '%s' "${os:-N/A}"
+}
+
+get_boot_time() {
+    local boot=''
+    if has_cmd uptime; then
+        boot=$(uptime -s 2>/dev/null || true)
+    fi
+    if [ -z "$boot" ] && has_cmd who; then
+        boot=$(who -b 2>/dev/null | awk '{print $3" "$4}' || true)
+    fi
+    printf '%s' "${boot:-N/A}"
+}
+
+get_uptime_pretty() {
+    local up=''
+    if has_cmd uptime; then
+        up=$(uptime -p 2>/dev/null | sed 's/^up //')
+    fi
+
+    if [ -z "$up" ] && [ -r /proc/uptime ]; then
+        local seconds
+        seconds=$(awk '{print int($1)}' /proc/uptime 2>/dev/null || echo 0)
+        if [ "$seconds" -gt 0 ] 2>/dev/null; then
+            local days hours minutes
+            days=$((seconds / 86400))
+            hours=$(((seconds % 86400) / 3600))
+            minutes=$(((seconds % 3600) / 60))
+            if [ "$days" -gt 0 ]; then
+                up="${days}天 ${hours}小时 ${minutes}分钟"
+            elif [ "$hours" -gt 0 ]; then
+                up="${hours}小时 ${minutes}分钟"
+            else
+                up="${minutes}分钟"
+            fi
         fi
-    done
-    
-    # 3. 如果还没找到，尝试任何 thermal_zone0 (通常是主要的)
-    if [ -r "/sys/class/thermal/thermal_zone0/temp" ]; then
-        temp_raw=$(cat "/sys/class/thermal/thermal_zone0/temp")
-        if [ "$temp_raw" -gt 0 ] 2>/dev/null; then
-             awk "BEGIN {printf \"%.1f\", $temp_raw/1000}"
-             return
+    fi
+
+    printf '%s' "${up:-N/A}"
+}
+
+get_load_avg() {
+    local load=''
+    if [ -r /proc/loadavg ]; then
+        load=$(awk '{print $1" "$2" "$3}' /proc/loadavg 2>/dev/null || true)
+    fi
+    if [ -z "$load" ] && has_cmd uptime; then
+        load=$(uptime 2>/dev/null | awk -F'load average: ' '{print $2}' || true)
+    fi
+    printf '%s' "${load:-N/A}"
+}
+
+get_cpu_model() {
+    local model=''
+    if [ -r /proc/cpuinfo ]; then
+        model=$(awk -F': *' '/model name/{print $2; exit}' /proc/cpuinfo 2>/dev/null || true)
+        [ -n "$model" ] || model=$(awk -F': *' '/Hardware/{print $2; exit}' /proc/cpuinfo 2>/dev/null || true)
+        [ -n "$model" ] || model=$(awk -F': *' '/Processor/{print $2; exit}' /proc/cpuinfo 2>/dev/null || true)
+    fi
+    if [ -z "$model" ] && has_cmd lscpu; then
+        model=$(lscpu 2>/dev/null | awk -F': *' '/Model name:/{print $2; exit}' || true)
+    fi
+    printf '%s' "${model:-N/A}"
+}
+
+get_cpu_cores() {
+    local cores=''
+    if has_cmd nproc; then
+        cores=$(nproc 2>/dev/null || true)
+    fi
+    if [ -z "$cores" ] && [ -r /proc/cpuinfo ]; then
+        cores=$(awk -F': *' '/^processor/{c++} END{print c+0}' /proc/cpuinfo 2>/dev/null || true)
+    fi
+    printf '%s' "${cores:-N/A}"
+}
+
+get_cpu_temp_c() {
+    local temp=''
+
+    if has_cmd sensors; then
+        temp=$(
+            sensors 2>/dev/null | awk '
+                BEGIN{IGNORECASE=1}
+                /(package id 0|tctl|tdie|cpu temperature|core 0|composite|temp1)/{
+                    for(i=1;i<=NF;i++){
+                        if($i ~ /^[+]?[0-9]+([.][0-9]+)?°C$/){
+                            gsub(/[+°C]/,"",$i);
+                            print $i; exit
+                        }
+                    }
+                }' || true
+        )
+    fi
+
+    if [ -z "$temp" ]; then
+        local zone
+        for zone in /sys/class/thermal/thermal_zone*; do
+            [ -r "$zone/temp" ] || continue
+            local temp_raw
+            temp_raw=$(cat "$zone/temp" 2>/dev/null || true)
+            case "$temp_raw" in
+                ''|*[!0-9]*) continue ;;
+            esac
+            if [ "$temp_raw" -gt 0 ] 2>/dev/null; then
+                if [ "$temp_raw" -ge 1000 ]; then
+                    temp=$(awk -v t="$temp_raw" 'BEGIN{printf "%.1f", t/1000}')
+                else
+                    temp=$temp_raw
+                fi
+                break
+            fi
+        done
+    fi
+
+    printf '%s' "$temp"
+}
+
+section_system() {
+    print_hr
+    print_title "系统概览"
+    print_kv "主机名" "$(hostname 2>/dev/null || echo N/A)"
+    print_kv "操作系统" "$(get_os_pretty_name)"
+    print_kv "内核版本" "$(uname -sr 2>/dev/null || echo N/A)"
+    print_kv "系统架构" "$(uname -m 2>/dev/null || echo N/A)"
+    print_kv "启动时间" "$(get_boot_time)"
+    print_kv "运行时间" "$(get_uptime_pretty)"
+    print_kv "平均负载" "$(get_load_avg)"
+    print_kv "当前时间" "$(date '+%F %T %Z' 2>/dev/null || echo N/A)"
+    print_hr
+}
+
+section_resources() {
+    print_title "硬件与资源"
+
+    local cpu_model cpu_cores cpu_temp
+    cpu_model=$(get_cpu_model)
+    cpu_cores=$(get_cpu_cores)
+    cpu_temp=$(get_cpu_temp_c)
+
+    if [ -n "$cpu_temp" ]; then
+        print_kv_info "CPU" "${cpu_model} (${cpu_cores} 核, ${cpu_temp}°C)"
+    else
+        print_kv "CPU" "${cpu_model} (${cpu_cores} 核)"
+    fi
+
+    local mem_total_kb mem_avail_kb mem_used_percent
+    mem_total_kb=$(awk '/MemTotal:/ {print $2; exit}' /proc/meminfo 2>/dev/null || true)
+    mem_avail_kb=$(awk '/MemAvailable:/ {print $2; exit}' /proc/meminfo 2>/dev/null || true)
+
+    mem_used_percent=$(
+        awk -v t="${mem_total_kb:-0}" -v a="${mem_avail_kb:-0}" '
+            BEGIN{
+                if(t>0 && a>0){
+                    printf "%.1f%%", (t-a)*100/t
+                } else {
+                    print "N/A"
+                }
+            }' 2>/dev/null || true
+    )
+    print_kv "内存" "总计: $(format_kb "$mem_total_kb") | 已用: ${mem_used_percent} | 可用: $(format_kb "$mem_avail_kb")"
+
+    local disk_type disk_size disk_used disk_avail disk_percent
+    disk_type=$(df -hPT / 2>/dev/null | awk 'NR==2 {print $2}' || true)
+    disk_size=$(df -hPT / 2>/dev/null | awk 'NR==2 {print $3}' || true)
+    disk_used=$(df -hPT / 2>/dev/null | awk 'NR==2 {print $4}' || true)
+    disk_avail=$(df -hPT / 2>/dev/null | awk 'NR==2 {print $5}' || true)
+    disk_percent=$(df -hPT / 2>/dev/null | awk 'NR==2 {print $6}' || true)
+    if [ -n "$disk_size" ] && [ -n "$disk_percent" ]; then
+        print_kv "磁盘(/)" "${disk_type:-N/A} 总:${disk_size} 已用:${disk_used} (${disk_percent}) 可用:${disk_avail}"
+    else
+        print_kv "磁盘(/)" "N/A"
+    fi
+}
+
+section_storage_full() {
+    print_title "存储明细"
+    if ! has_cmd df; then
+        print_kv "df" "未安装"
+        return 0
+    fi
+
+    df -hPT \
+        -x tmpfs -x devtmpfs -x devpts -x proc -x sysfs -x cgroup -x cgroup2 \
+        -x securityfs -x pstore -x efivarfs -x autofs -x debugfs -x mqueue \
+        -x hugetlbfs -x tracefs -x fusectl -x squashfs 2>/dev/null \
+        | awk 'NR==1{next} {printf "%s|%s|%s|%s|%s|%s\n",$7,$2,$3,$4,$6,$1}' \
+        | while IFS='|' read -r mount fs_type size used percent device; do
+            case "$mount" in
+                /var/lib/docker/*|/run/*|/snap/*) continue ;;
+            esac
+            printf '  %b%s%b (%b%s%b - %s)\n' "${C_INFO}" "$mount" "${C_RESET}" "${C_VALUE}" "$device" "${C_RESET}" "$fs_type"
+            printf '    %b总:%b %b%s%b, %b已用:%b %b%s%b (%b%s%b)\n' \
+                "${C_LABEL}" "${C_RESET}" "${C_BLUE}" "$size" "${C_RESET}" \
+                "${C_LABEL}" "${C_RESET}" "${C_BLUE}" "$used" "${C_RESET}" \
+                "${C_VALUE}" "$percent" "${C_RESET}"
+        done
+}
+
+section_network() {
+    print_title "网络连接"
+
+    if has_cmd ip; then
+        local default_route default_iface default_gw
+        default_route=$(ip route show default 2>/dev/null | head -n 1 || true)
+        if [ -n "$default_route" ]; then
+            default_gw=$(printf '%s\n' "$default_route" | awk '{print $3}' || true)
+            default_iface=$(printf '%s\n' "$default_route" | awk '{for(i=1;i<=NF;i++) if($i=="dev"){print $(i+1); exit}}' || true)
+            [ -n "$default_iface" ] && print_kv "默认路由" "dev=${default_iface} gw=${default_gw:-N/A}"
+        fi
+
+        local has_ip=0
+        local iface
+        while IFS= read -r iface; do
+            [ -n "$iface" ] || continue
+            case "$iface" in
+                lo|docker*|veth*|br-*|virbr* ) continue ;;
+            esac
+
+            local ipv4 ipv6 mac
+            ipv4=$(ip -o -4 addr show dev "$iface" scope global 2>/dev/null | awk '{print $4}' | cut -d/ -f1 | paste -sd' ' - || true)
+            ipv6=$(ip -o -6 addr show dev "$iface" scope global 2>/dev/null | awk '{print $4}' | cut -d/ -f1 | paste -sd' ' - || true)
+            mac=$(ip link show dev "$iface" 2>/dev/null | awk '/link\/ether/ {print $2; exit}' || true)
+
+            if [ -n "$ipv4" ] || [ -n "$ipv6" ]; then
+                has_ip=1
+                printf '  %b%s%b\n' "${C_INFO}${C_BOLD}" "$iface" "${C_RESET}"
+                [ -n "$ipv4" ] && printf '    %bIPv4:%b %b%s%b\n' "${C_LABEL}" "${C_RESET}" "${C_VALUE}" "$ipv4" "${C_RESET}"
+                [ -n "$ipv6" ] && printf '    %bIPv6:%b %b%s%b\n' "${C_LABEL}" "${C_RESET}" "${C_VALUE}" "$ipv6" "${C_RESET}"
+                [ -n "$mac" ] && printf '    %bMAC:%b  %b%s%b\n' "${C_LABEL}" "${C_RESET}" "${C_VALUE}" "$mac" "${C_RESET}"
+            fi
+        done < <(ip -o link show up 2>/dev/null | awk -F': ' '{print $2}' | cut -d'@' -f1)
+
+        if [ "$has_ip" -eq 0 ]; then
+            print_kv "状态" "未检测到活动的网络连接或 IP 地址"
+        fi
+    else
+        local ips
+        ips=$(hostname -I 2>/dev/null | tr -s ' ' ' ' | sed 's/ $//' || true)
+        if [ -n "$ips" ]; then
+            print_kv "IP" "$ips"
+        else
+            print_kv "状态" "未检测到 IP（ip 命令不可用）"
         fi
     fi
 }
 
-CPU_TEMP_VAL=$(get_cpu_temp)
-if [ -n "$CPU_TEMP_VAL" ]; then
-    CPU_TEMP="(${INFO_COLOR}${CPU_TEMP_VAL}°C${VALUE_COLOR})"
-fi
+section_docker() {
+    local mode=$1
 
-# 智能内存显示：小于 1GB 显示 MB，否则显示 GB (保留1位小数)
-MEM_TOTAL_MB=$(free -m | awk 'NR==2{print $2}')
-if [ "$MEM_TOTAL_MB" -ge 1000 ]; then
-    MEM_TOTAL_DISPLAY=$(awk -v val="$MEM_TOTAL_MB" 'BEGIN {printf "%.1fGB", val/1024}')
-else
-    MEM_TOTAL_DISPLAY="${MEM_TOTAL_MB}MB"
-fi
+    if ! has_cmd docker; then
+        return 0
+    fi
 
-MEM_USED_PERCENT=$(free -m | awk 'NR==2{printf "%.1f%%", $3*100/$2 }')
-MEM_AVAILABLE_MB=$(free -m | awk 'NR==2{print $7"MB"}') # 'available' 通常比 'free' 更能代表实际可用内存
+    if ! docker ps >/dev/null 2>&1; then
+        return 0
+    fi
 
-# --- GPU 检测 ---
-# 优先使用 lspci 检测 VGA, 3D, Display 控制器
-GPU_INFO=""
-if command -v lspci &> /dev/null; then
-    # 获取设备列表，去除前面的地址信息，只保留设备名称
-    # 典型 lspci 输出: "00:02.0 VGA compatible controller: Intel Corporation ..."
-    # 我们需要截取 "Intel Corporation ..."
-    # 使用 sed 处理：匹配开头到第二个冒号之前的所有内容并删除
-    GPU_INFO=$(lspci | grep -iE 'vga|3d|display' | sed 's/^.*: .*[:] //')
-fi
+    local running total
+    running=$(docker ps -q 2>/dev/null | wc -l | awk '{print $1}' || true)
+    total=$(docker ps -aq 2>/dev/null | wc -l | awk '{print $1}' || true)
 
-echo -e "${TITLE_COLOR}${BOLD}硬件资源${NONE}"
-echo -e "  ${LABEL_COLOR}中央处理器 (CPU):${NONE}"
-echo -e "    ${VALUE_COLOR}$CPU_MODEL - ${CPU_CORES} 核心 ${CPU_TEMP}${NONE}"
-if [ -n "$GPU_INFO" ]; then
-    echo -e "  ${LABEL_COLOR}图形处理器 (GPU):${NONE}"
-    # 处理多显卡情况，逐行显示
-    echo "$GPU_INFO" | while read -r line; do
-        echo -e "    ${VALUE_COLOR}$line${NONE}"
-    done
-fi
-echo -e "  ${LABEL_COLOR}内存 (RAM):${NONE}"
-echo -e "    ${VALUE_COLOR}总计: ${INFO_COLOR}$MEM_TOTAL_DISPLAY${VALUE_COLOR} | 已用: ${INFO_COLOR}$MEM_USED_PERCENT${VALUE_COLOR} | 可用: ${INFO_COLOR}$MEM_AVAILABLE_MB${NONE}"
-echo -e "  ${LABEL_COLOR}存储空间:${NONE}"
+    print_title "Docker 容器"
+    print_kv "容器数量" "运行中: ${running:-0} / 总计: ${total:-0}"
 
-# --- 修改的存储部分 (删除进度条, 修改颜色) ---
-# 使用 df -hT 获取信息，-x 排除不必要的类型 (保留 overlay)
-# 使用 awk 跳过头部 (NR>1)，并按列提取 (Filesystem, Type, Size, Used, Use%, Mounted on)
-# 注意：已添加 -x overlay 以隐藏 Docker 挂载卷
-df -hT -x tmpfs -x devtmpfs -x devpts -x proc -x sysfs -x cgroup -x fusectl -x securityfs -x pstore -x efivarfs -x autofs -x overlay 2>/dev/null | awk 'NR>1 {print $1, $2, $3, $4, $6, $7}' | while read -r DEVICE TYPE SIZE USED PERCENT MOUNTPOINT; do
+    if [ "$mode" = "full" ] && [ "${running:-0}" -gt 0 ] 2>/dev/null; then
+        local names
+        names=$(docker ps --format '{{.Names}}' 2>/dev/null | paste -sd', ' - || true)
+        [ -n "$names" ] && print_kv "运行列表" "$names"
+    fi
+}
 
-    # --- 已删除进度条的计算和绘制 ---
+section_activity() {
+    local mode=$1
+    local user from_ip tty last_login
 
-    echo -e "    ${INFO_COLOR}${MOUNTPOINT}${NONE} (${VALUE_COLOR}${DEVICE} - ${TYPE}${NONE})"
-    # --- 核心改动：将 总 和 已用 后面的数值改为蓝色 ---
-    # LABEL_COLOR 用于标签文字 "总:" 和 "已用:"
-    # BLUE_COLOR 用于数值 SIZE 和 USED
-    # VALUE_COLOR 用于百分比 PERCENT 以及括号和逗号
-    echo -e "      ${LABEL_COLOR}总:${NONE} ${BLUE_COLOR}${SIZE}${NONE}, ${LABEL_COLOR}已用:${NONE} ${BLUE_COLOR}${USED}${NONE} (${VALUE_COLOR}${PERCENT}${NONE})"
-done
+    user=${USER:-}
+    [ -n "$user" ] || user=$(id -un 2>/dev/null || echo N/A)
 
-echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
+    from_ip=''
+    if [ -n "${SSH_CONNECTION:-}" ]; then
+        from_ip=$(printf '%s\n' "$SSH_CONNECTION" | awk '{print $1}' || true)
+    fi
+    if [ -z "$from_ip" ] && has_cmd who; then
+        from_ip=$(who -m 2>/dev/null | awk -F'[()]' '{print $2}' | awk '{print $1}' || true)
+    fi
 
+    tty=$(tty 2>/dev/null || true)
 
+    print_title "登录与统计"
+    print_kv "当前用户" "$user"
+    [ -n "$from_ip" ] && print_kv "来源地址" "$from_ip"
+    [ -n "$tty" ] && print_kv "终端" "$tty"
 
-# --- 网络连接 ---
-echo -e "${TITLE_COLOR}${BOLD}网络连接${NONE}"
-INTERFACES_UP=$(ip -o link show up | awk -F': ' '{print $2}' | cut -d '@' -f 1) # 使用 cut 移除 @ifname 后缀
-HAS_IP=false
-if [ -n "$INTERFACES_UP" ]; then
-    for IFACE in $INTERFACES_UP; do
-        if [[ "$IFACE" == "lo" ]]; then continue; fi # 跳过 lo 接口
-        # 跳过 Docker 相关接口
-        if [[ "$IFACE" == docker* || "$IFACE" == veth* || "$IFACE" == br-* ]]; then continue; fi
+    last_login=$(
+        last -n 5 -w "$user" 2>/dev/null \
+            | awk -v u="$user" '$1==u && $0 !~ /wtmp begins/ && $0 !~ /still logged in/ {print; exit}' \
+            || true
+    )
+    [ -n "$last_login" ] && print_kv "上次登录" "$last_login"
 
-        IP_ADDRS=$(ip -4 addr show dev "$IFACE" 2>/dev/null | grep -oP 'inet \K[\d.]+' | tr '\n' ' ')
-        IP_ADDRS_V6=$(ip -6 addr show dev "$IFACE" 2>/dev/null | grep -oP 'inet6 \K[0-9a-fA-F:]+' | grep -ivE '^fe80::' | head -n1 | tr '\n' ' ') # 只显示一个全局 IPv6
-        MAC_ADDR=$(ip link show dev "$IFACE" 2>/dev/null | awk '/ether/ {print $2}')
-
-        if [ -n "$IP_ADDRS" ] || [ -n "$IP_ADDRS_V6" ]; then
-            HAS_IP=true
-            IFACE_TYPE_LABEL=""
-            if [[ "$IFACE" == wlan* || "$IFACE" == wlp* || "$IFACE" == ath* || "$IFACE" == ra* ]]; then
-                 IFACE_TYPE_LABEL="(${LABEL_COLOR}WiFi${NONE}) "
-            elif [[ "$IFACE" == eth* || "$IFACE" == enp* || "$IFACE" == eno* ]]; then
-                 IFACE_TYPE_LABEL="(${LABEL_COLOR}有线${NONE}) "
-            # 添加对虚拟接口类型的更全面判断
-            elif [[ "$IFACE" == docker* || "$IFACE" == br-* || "$IFACE" == veth* || "$IFACE" == tun* || "$IFACE" == tap* || "$IFACE" == virbr* ]]; then
-                 IFACE_TYPE_LABEL="(${LABEL_COLOR}虚拟${NONE}) "
-            # 考虑桥接接口
-            elif ip link show "$IFACE" | grep -q "bridge"; then
-                 IFACE_TYPE_LABEL="(${LABEL_COLOR}桥接${NONE}) "
-            fi
-
-
-            echo -e "  ${INFO_COLOR}${BOLD}${IFACE}${NONE} ${IFACE_TYPE_LABEL}"
-            [ -n "$IP_ADDRS" ] && echo -e "    ${LABEL_COLOR}IPv4:${NONE} ${VALUE_COLOR}${IP_ADDRS% }${NONE}" # %  移除末尾空格
-            [ -n "$IP_ADDRS_V6" ] && echo -e "    ${LABEL_COLOR}IPv6:${NONE} ${VALUE_COLOR}${IP_ADDRS_V6% }${NONE}"
-            [ -n "$MAC_ADDR" ] && echo -e "    ${LABEL_COLOR}MAC:${NONE}  ${VALUE_COLOR}${MAC_ADDR}${NONE}"
+    if [ "$mode" = "full" ]; then
+        local package_count='N/A'
+        if has_cmd dpkg-query; then
+            package_count=$(dpkg-query -f '${Package}\n' -W 2>/dev/null | wc -l | awk '{print $1}' || true)
+            print_kv "软件包数" "${package_count:-N/A} (Debian/APT)"
+        elif has_cmd rpm; then
+            package_count=$(rpm -qa 2>/dev/null | wc -l | awk '{print $1}' || true)
+            print_kv "软件包数" "${package_count:-N/A} (RPM/Yum/Dnf)"
+        elif has_cmd pacman; then
+            package_count=$(pacman -Qq 2>/dev/null | wc -l | awk '{print $1}' || true)
+            print_kv "软件包数" "${package_count:-N/A} (Pacman)"
         fi
+    fi
+}
+
+section_gpu() {
+    if ! has_cmd lspci; then
+        return 0
+    fi
+
+    local gpus
+    gpus=$(lspci 2>/dev/null | awk -F': ' '/VGA compatible controller|3D controller|Display controller/{print $2}' || true)
+    [ -n "$gpus" ] || return 0
+
+    print_title "图形处理器 (GPU)"
+    while IFS= read -r line; do
+        [ -n "$line" ] || continue
+        printf '  %b%s%b\n' "${C_VALUE}" "$line" "${C_RESET}"
+    done <<<"$gpus"
+}
+
+main() {
+    local mode=${LOGIN_INFO_MODE:-summary}
+    local show_docker=1
+
+    while [ $# -gt 0 ]; do
+        case "$1" in
+            --summary|--fast) mode=summary ;;
+            --full) mode=full ;;
+            --no-docker) show_docker=0 ;;
+            --no-color) LOGIN_INFO_COLOR=never ;;
+            -h|--help) usage; return 0 ;;
+            *) printf '错误: 未知参数: %s\n' "$1" >&2; usage; return 2 ;;
+        esac
+        shift
     done
-fi
-if ! $HAS_IP; then
-    echo -e "  ${VALUE_COLOR}未检测到活动的网络连接或IP地址${NONE}"
-fi
-echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
 
+    init_colors
 
+    section_system
+    section_resources
 
-# --- Docker 容器 ---
-# 检查 docker 命令是否存在且守护进程正在运行
-if command -v docker &> /dev/null && docker ps &> /dev/null; then
-    DOCKER_RUNNING_COUNT=$(docker ps -q | wc -l)
-    DOCKER_TOTAL_COUNT=$(docker ps -aq | wc -l)
-    
-    echo -e "${TITLE_COLOR}${BOLD}Docker 容器${NONE}"
-    echo -e "  ${LABEL_COLOR}容器数量:${NONE} ${VALUE_COLOR}运行中: ${INFO_COLOR}${DOCKER_RUNNING_COUNT}${VALUE_COLOR} / 总计: ${INFO_COLOR}${DOCKER_TOTAL_COUNT}${NONE}"
-    
-    if [ "$DOCKER_RUNNING_COUNT" -gt 0 ]; then
-        # 获取名称列表，用逗号分隔
-        DOCKER_NAMES=$(docker ps --format "{{.Names}}" | tr '\n' ',' | sed 's/,$//' | sed 's/,/, /g')
-        echo -e "  ${LABEL_COLOR}运行列表:${NONE} ${VALUE_COLOR}${DOCKER_NAMES}${NONE}"
-    fi
-    echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
-fi
-
-
-
-# --- 活动与统计 ---
-LAST_LOGIN_INFO=$(last -n 1 -wFai 2>/dev/null | head -n 1) # -a 把hostname放最后, -i 显示IP
-LAST_LOGIN_DISPLAY=""
-if [[ "$LAST_LOGIN_INFO" == *"wtmp begins"* || -z "$LAST_LOGIN_INFO" || $(echo "$LAST_LOGIN_INFO" | wc -w) -lt 5 ]]; then # 增加字段数检查
-    LAST_LOGIN_DISPLAY="${VALUE_COLOR}无先前登录记录或记录格式异常${NONE}"
-else
-    # --- 修改的上次登录部分 ---
-    USER=$(echo "$LAST_LOGIN_INFO" | awk '{print $1}')
-    # 对于 -wFai, IP/hostname 通常是第三列
-    FROM_IP_OR_HOST=$(echo "$LAST_LOGIN_INFO" | awk '{print $3}')
-
-    # 精确提取日期和时间部分，跳过 'still' 和年份 (字段 4到7)
-    LOGIN_TIME_FIELDS=$(echo "$LAST_LOGIN_INFO" | awk '{print $4, $5, $6, $7}')
-
-    # 尝试用date格式化，如果失败则显示原始字段
-    LOGIN_TIME_FORMATTED=$(date -d "$LOGIN_TIME_FIELDS $(date +%Y)" +"%Y-%m-%d %H:%M:%S" 2>/dev/null) # 显式添加年份尝试格式化
-    if [ -z "$LOGIN_TIME_FORMATTED" ]; then
-         LOGIN_TIME_FORMATTED="${VALUE_COLOR}${LOGIN_TIME_FIELDS}${NONE} (raw)" # 格式化失败，显示原始字段并标记
+    if [ "$mode" = "full" ]; then
+        section_gpu
+        section_storage_full
     fi
 
-    LAST_LOGIN_DISPLAY="${LABEL_COLOR}用户:${NONE} ${INFO_COLOR}$USER${NONE}, ${LABEL_COLOR}来自:${NONE} ${INFO_COLOR}$FROM_IP_OR_HOST${NONE}, ${LABEL_COLOR}时间:${NONE} ${VALUE_COLOR}$LOGIN_TIME_FORMATTED${NONE}"
-fi
+    section_network
 
+    if [ "$show_docker" -eq 1 ]; then
+        section_docker "$mode"
+    fi
 
-PACKAGE_COUNT=$(dpkg-query -f '${Package}\n' -W 2>/dev/null | wc -l || echo "N/A") # Debian/APT
+    section_activity "$mode"
+    print_hr
 
-echo -e "${TITLE_COLOR}${BOLD}活动与统计${NONE}"
-echo -e "  ${LABEL_COLOR}上次登录:${NONE} $LAST_LOGIN_DISPLAY"
+    if [ "$mode" = "summary" ]; then
+        printf '%b提示:%b 运行 %blogin-info --full%b 查看更完整信息\n' \
+            "${C_SUBTLE}" "${C_RESET}" "${C_INFO}" "${C_RESET}"
+    fi
+}
 
-# 检查是否是 Debian/Ubuntu 系列系统，然后显示包数
-if command -v dpkg-query &> /dev/null; then
-    PACKAGE_COUNT=$(dpkg-query -f '${Package}\n' -W 2>/dev/null | wc -l || echo "N/A")
-    echo -e "  ${LABEL_COLOR}软件包数:${NONE} ${VALUE_COLOR}$PACKAGE_COUNT (Debian/APT)${NONE}"
-elif command -v rpm &> /dev/null; then
-     PACKAGE_COUNT=$(rpm -qa 2>/dev/null | wc -l || echo "N/A")
-     echo -e "  ${LABEL_COLOR}软件包数:${NONE} ${VALUE_COLOR}$PACKAGE_COUNT (RPM/Yum/Dnf)${NONE}"
-elif command -v pacman &> /dev/null; then
-     PACKAGE_COUNT=$(pacman -Qq 2>/dev/null | wc -l || echo "N/A")
-     echo -e "  ${LABEL_COLOR}软件包数:${NONE} ${VALUE_COLOR}$PACKAGE_COUNT (Pacman)${NONE}"
-else
-     echo -e "  ${LABEL_COLOR}软件包数:${NONE} ${VALUE_COLOR}N/A (未知包管理器)${NONE}"
-fi
-
-CURRENT_DATETIME=$(date +"%Y年%m月%d日 %A %H:%M:%S %Z")
-echo -e "  ${LABEL_COLOR}当前登录时间:${NONE} ${VALUE_COLOR}$CURRENT_DATETIME$"
-
-echo -e "${SUBTLE_COLOR}───────────────────────────────────────────────────────────────────────────────${NONE}"
+main "$@"
diff --git a/login-info/uninstall_login-info.sh b/login-info/uninstall_login-info.sh
new file mode 100644
index 0000000..5400bd4
--- /dev/null
+++ b/login-info/uninstall_login-info.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+#===============================================================================
+# login-info 卸载脚本
+# 作用:
+#   删除 /usr/local/bin/login-info
+#   删除 /etc/profile.d/smy-login-info.sh
+#===============================================================================
+
+log() { printf '[login-info-卸载] %s\n' "$*" >&2; }
+fail() { log "错误: $*"; exit 1; }
+
+require_root() {
+    if [ "${EUID:-$(id -u)}" -ne 0 ]; then
+        fail "请使用 root 权限运行 (sudo bash login-info/uninstall_login-info.sh)"
+    fi
+}
+
+main() {
+    require_root
+
+    local bin_path profile_hook
+    bin_path="/usr/local/bin/login-info"
+    profile_hook="/etc/profile.d/smy-login-info.sh"
+
+    if [ -f "$bin_path" ]; then
+        log "删除: $bin_path"
+        rm -f "$bin_path"
+    else
+        log "跳过: $bin_path 不存在"
+    fi
+
+    if [ -f "$profile_hook" ]; then
+        log "删除: $profile_hook"
+        rm -f "$profile_hook"
+    else
+        log "跳过: $profile_hook 不存在"
+    fi
+
+    log "卸载完成"
+}
+
+main "$@"
+
diff --git a/readme.md b/readme.md
deleted file mode 100644
index e69de29..0000000