Lazy screen 中文版

lazyscreen.sh

#!/bin/bash

# 检查是否安装了 screen
if ! command -v screen &> /dev/null; then
    echo "❌ 错误: 系统未安装 screen，请先安装。"
    exit 1
fi

# 获取当前所有会话并存入数组
get_screen_list() {
    mapfile -t SCREEN_ARRAY < <(screen -ls | grep -E "\((Attached|Detached)\)" | awk '{print $1 " " $2}')
}

show_menu() {
    clear
    echo "====================================================="
    echo "          🦥 LAZY SCREEN (指令一体化版)              "
    echo "====================================================="
    echo " 当前后台运行中的会话:"
    
    get_screen_list
    if [ ${#SCREEN_ARRAY[@]} -eq 0 ]; then
        echo "  [暂无活跃的后台会话]"
    else
        for i in "${!SCREEN_ARRAY[@]}"; do
            echo "  [$((i+1))] ${SCREEN_ARRAY[$i]}"
        done
    fi
    echo "-----------------------------------------------------="
    echo " [n]     🚀 新建全新会话 (直接输入: n 名字)"
    echo " [数字]  🔗 快捷恢复会话 (直接输入: 数字 或 r数字)"
    echo " [k数字] 🛑 快捷彻底关闭 (直接输入: k数字)"
    echo " [f/r]   🔄 刷新会话列表"
    echo " [h]     💡 偷溜快捷键小抄"
    echo " [q]     ❌ 退出助手"
    echo "====================================================="
    echo -n "懒人指令 >> "
}

create_screen() {
    local name=$1
    # 如果用户没有输入名字，再提示手动输入
    if [ -z "$name" ]; then
        echo ""
        read -p "请输入新会话的名字 (例如: web, api): " name
    fi
    
    if [ -z "$name" ]; then
        echo "❌ 名字不能为空！"
        sleep 1
        return
    fi
    echo "👉 正在创建并进入会话: $name"
    echo "💡 提示：进去后想保持后台并溜出来，请按：Ctrl + A，然后按 D"
    echo "按任意键进入..."
    read -n 1
    screen -S "$name"
}

attach_by_index() {
    local idx=$1
    get_screen_list
    if [ "$idx" -le "${#SCREEN_ARRAY[@]}" ] && [ "$idx" -gt 0 ]; then
        target=$(echo "${SCREEN_ARRAY[$((idx-1))]}" | awk '{print $1}')
        screen -r "$target"
    else
        echo "❌ 找不到编号为 [$idx] 的会话！"
        sleep 1
    fi
}

kill_by_index() {
    local idx=$1
    get_screen_list
    if [ "$idx" -le "${#SCREEN_ARRAY[@]}" ] && [ "$idx" -gt 0 ]; then
        target=$(echo "${SCREEN_ARRAY[$((idx-1))]}" | awk '{print $1}')
        screen -X -S "$target" quit
        echo "✨ 会话 $target 已彻底关闭。"
        sleep 1
    else
        echo "❌ 找不到编号为 [$idx] 的会话！"
        sleep 1
    fi
}

help_tips() {
    clear
    echo "========================================="
    echo "         💡 LAZY SCREEN 独家小抄"
    echo "========================================="
    echo "当你【身处在某个 Screen 会话内部】时："
    echo ""
    echo "1. 如何“溜出来”（保持后台运行）："
    echo "   👉 先按住 Ctrl + A，放开，再单独按一下 D 键。"
    echo ""
    echo "2. 如何在里面直接“销毁”这个会话："
    echo "   👉 直接输入 \`exit\` 回车，或者按 Ctrl + D。"
    echo "========================================="
    read -p "按回车键返回主菜单..."
}

# 主循环
while true; do
    show_menu
    read -r cmd args
    
    # 转换为小写方便匹配
    cmd=$(echo "$cmd" | tr 'A-Z' 'a-z')

    case $cmd in
        n) 
            create_screen "$args" 
            ;;
        f|r) 
            # 只有当纯输入 r 时才是刷新；如果是 r1 这种形式，会走下面的通配符匹配
            if [ -z "$args" ]; then
                : # 刷新列表（直接走循环开头）
            else
                # 处理可能误输入成 "r 1" 的情况
                if [[ "$args" =~ ^[0-9]+$ ]]; then
                    attach_by_index "$args"
                fi
            fi
            ;;
        h) 
            help_tips 
            ;;
        q) 
            clear; echo "再见！"; exit 0 
            ;;
        *) 
            # 1. 匹配直接输入纯数字 (如: 1) -> 默认恢复该会话
            if [[ "$cmd" =~ ^[0-9]+$ ]]; then
                attach_by_index "$cmd"
            
            # 2. 匹配 r+数字 (如: r1, r2) -> 恢复对应会话
            elif [[ "$cmd" =~ ^r([0-9]+)$ ]]; then
                idx="${BASH_REMATCH[1]}"
                attach_by_index "$idx"
                
            # 3. 匹配 k+数字 (如: k1, k2) -> 杀死对应会话
            elif [[ "$cmd" =~ ^k([0-9]+)$ ]]; then
                idx="${BASH_REMATCH[1]}"
                kill_by_index "$idx"
                
            else
                echo "❌ 指令无法识别，请根据菜单提示输入。"; sleep 1
            fi
            ;;
    esac
done
EOF

# 赋予权限并移动到全局目录
chmod +x ~/lscreen
sudo mv ~/lscreen /usr/local/bin/lscreen