Mac技巧分享

一. 文件管理

finder

隐藏文件管理

显示 defaults write com.apple.finder AppleShowAllFiles -boolean true ; killall Finder
隐藏 defaults write com.apple.finder AppleShowAllFiles -boolean false ; killall Finder

二. 软件管理

Aria2c

是否启动 ps aux|grep aria2c
启动：terminal---aria2c

《沸腾十五年》

《沸腾十五年》讲述中国，1995-2009 1995互联网商业元年马云中国黄页杭州电信有着非常好的社会资源和政府资源，马云却一样都没有。杭州电信利用中国黄页（ chinapage.com ）已有的名声，做了一个名字很接近的网站，也叫“中国黄页”（ chinesepage.com ），借以分割马云版“中国黄页”的市场。海归、极客、商人成为中国互联网创业者中的三大特色群体（VC是推手） 1996海归归来为了确保搜狐不被遗忘，张朝阳选择了最便宜也最有效的方法：树立个人品牌。 1997大门洞开互联网的一年等于其他行业的7年网易免费电子邮箱系统一出，中关村性急的评论家们甚至给丁磊戴上第三代程序员的帽子，这个代别划分是这样的：基于DOS平台开发的是第一代，基于Windows平台开发的是第二代，基于Internet平台开发的是第三代。 1998极客当道曾李青是腾讯5个创始人中最好玩、最开放、最具激情和感召力的一个，与温和的马化腾、爱好技术的张志东相比，是另一个类型。周鸿祎在公开场合经常教育年轻的创业者，应该先用创业的心态去打工，充分积累自己在管理和业务上的能力和资源 1999狂欢开始了海归、商人、极客、VC推手，这四类人一起齐刷刷地汇聚在1999年，1999年就这样成为中国互联网最黄金、最灿烂、最辉煌、最值得念想的大年份。 2000泡沫四溢亚马逊的卖点是：‘最近50年的书我们都有’——这是它提供海量品种的意义。（因为国外有很高的信息化程度，以查询库房是否有存书）雷军在商店买T恤的时候，发现了求同消费现象。“中国经济和美国经济处在不同的发展阶段，美国消费者寻求个性消费，中国现阶段，需求高度趋同，中国需要50年前版书的人极少。” 单品价格压得再便宜，但5元钱的配送费卓越坚决不免，用户冲着几乎免费的产品而来，但想想既然要出5元的配送费，买一样商品是这个钱，10样商品也是，不如多挑几样商品。雷军发现，互联网比软件要好玩得多，可以不断地改，不断地去修正，用户可以很快地反馈给你，你也可以很快地进步 2001大转折段永平反问他：“你卖了公司之后干吗？”丁磊说：“我卖了公司有钱后再开一家公司。” 段永平发现，网易股票被低估是因为公司面临一场官司，也可能被摘牌，这里面有些不确定性。段永平就去找一些法律界人士问官司的问题，问类似的官司最可能的结果是什么，得到...

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产品随想 | 周刊第116期：Great things in business are never done by one person.

Cromite https://github.com/uazo/cromite Cromite a Bromite fork with ad blocking and privacy enhancements; take back your browser! awesome-shizuku https://github.com/timschneeb/awesome-shizuku Curated list of awesome Android apps making use of Shizuku KernelSU https://github.com/tiann/KernelSU A Kernel based root solution for Android Love, Hate or Fear It, TikTok Has Changed America https://www.nytimes.com/interactive/2024/04/18/business/media/tiktok-ban-american-culture.html?unlocked_article_code=1.mE0.DpEZ.VWmNssw5B6_c "My model for business is The Beatles.There were four guys who kept each others, kind of, negative tendencies in check. They balanced each other, and the total was greater than the sum of the parts. And that's how I see business. You know, great things in business are never done by one person. They're done by a team of people. "Our motivation is simple--we want to provide the most advanced and innovative platform to our developers, and we wa...

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产品随想 | 陪读《芯片战争》：一、二章

作者其它书也值得读读已出版《食用油营销第1书》《金龙鱼背后的粮油帝国》《鲁花：一粒花生撬动的粮油帝国》《手机战争》等财经书籍。第一章从晶体管到芯片肖克利要创业的消息，就像17世纪的牛顿宣布要建立工场一样引起了轰动。那时候，美国还在草创时期的半导体产业主要集中在东部的波士顿和纽约长岛地区，许多科学家和工程师精英都慕肖克利之名前往美国西海岸，不远千里地聚集在肖克利旗下。可以这么说，肖克利给硅谷带来了最初的火种。 ——我也認可這個說法，不是斯坦福或其他校園，純粹是人才的原因芯片发明后的六年间，政府对芯片项目的资助高达3200万美元，其中70%来自空军。同期美国半导体产业的研发经费有约85%的比例来自政府，政府的支持成就了美国在半导体领域的技术优势。“华盛顿通过支付技术研发费用和保证最终产品的市场份额，将原子弹最终制造成功的间隔缩短至六年，晶体管缩短至五年，集成电路缩短至三年。”不过，这些半导体企业实力壮大以后，往往不愿再参与美国政府出资的研发项目，因为那意味着专利权归政府所有，而且还得受保密条款的约束。 ——這纔是更合理的產業支持政策诺伊斯采用激进的价格政策，将主要芯片产品的价格一举降到1美元，不仅是市场上的主流芯片价格的零头，还低于当时芯片的成本。这不是传统意义上的亏本倾销，而是第一个以反摩尔定律为定价依据的案例。反摩尔定律认为，同样的芯片在18个月后价格就会跌一半，所以按照几年后的价格为当前的芯片定价是有一定合理性的。市场被迅速打开，芯片很快在民用市场得到越来越广泛的应用，仙童的营收和利润都迅速上升，还带动了其母公司的股价上涨。摩尔后来评论：“诺伊斯以低价刺激需求，继而扩大产能、降低成本的策略，对于芯片产业的发展而言，其重要性堪比芯片的发明。” ——看到這裏的時候，真是非常震撼，好厲害的定價策略东通工用磷渗透法研发出了高频的晶体管，于1957年做出世界上第一款袖珍收音机，并在这款产品上启用了索尼商标。盛田昭夫到美国去推销袖珍收音机的时候，德州仪器刚刚轻率地放弃了这个市场。美国人对盛田昭夫说：你们为什么要制造这种小收音机？美国人都想要大收音机。盛田昭夫回答：单单纽约就有20多家广播公司，同时就有20多套节目在播放，每人使用一台小收音机收听自己喜欢的节目，岂不更好？索尼用“一人一台”的宣传成功打破了美国人全家共用一台大型收音机的观念，成为全世界最畅销的收音机...

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Scott Forstall: "Great leaders exude a positive attitude of possibility and don’t shy from working harder than their employees and taking risks."

Scott Forstall led the team at Apple that developed the iPhone – and is equally successful in vastly different realms, including co-producing multiple Tony Award winning Broadway shows. What has always impressed me most, though, is the time he devotes to mentoring a diverse set of entrepreneurial founders. We’ve had the pleasure of knowing each other for several years, thanks to mutual friend Ali Partovi ’s incredible Neo community , a mentor community, accelerator and VC through which we support junior engineers to become senior leaders. Ali was an early backer of Airbnb, Dropbox, Uber and Facebook, so I knew I was in good hands! At our recent Neo reunion I was able to catch-up with Scott for a wide-ranging conversation on the landscapes of opportunity in technology and what we’re anticipating next. He kindly agreed to go o...

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《Becoming Steve Jobs》Chapter 11 Do Your Level Best

As a mass-market consumer electronics device, the iPod would eventually be sold, of course, all the usual places: Best Buy, Circuit City, big-box department stores, and even the computer retailers like CompUSA. Steve disdained all these outlets. His obsession with his products continued well after they’d been manufactured. The tacky, low-margin hustle of these chains ran completely against the minimalist aesthetic of his products and the clean exuberance of his marketing. There was only one place where he really enjoyed seeing his products sold to the public: his own Apple stores, which had debuted four months ahead of the iPod. 觉得那些喧嚣、嘈杂的零售渠道，配不上自己极美的产品 Going back as far as the debut of the Mac, Steve had always groused about the way Apple computers were sold in its resellers’ stores. The way his computers were displayed and sold represented the very worst of what could go wrong when things weren’t done his way. The salespeople, always interested in quick turnover, seemed to make litt...

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李录推荐阅读书单

李录推荐阅读书单李录在《文明、现代化、价值投资和中国》的最后，列出了他推荐阅读的一些书目。这个书目的含金量非常之高，是培养一个多层次有深度思维很好的参考，特整理如下。一. 科学、哲学、进化、人类文明史、人类历史 1. 《枪炮、病菌与钢铁：人类社会的命运》，贾雷德·戴蒙德 2. 《西方将主宰多久》，伊恩·莫里斯 3. 《文明的度量：社会发展如何决定国家命运》，伊恩·莫里斯 4. 《群的征服》，爱德华·奥斯本·威尔森 5. 《无穷的开始：世界进步的本源》，戴维·多伊奇 6. 《真实世界的脉络：平行宇宙及其寓意》，戴维·多伊奇 7. 《理性乐观派：一部人类经济进步史》，马特·里德利 8. 《科学发现的逻辑》，卡尔·波普尔 9. 《开放社会及其敌人》，卡尔·波普尔 10. 《自私的基因》，理查德·道金斯 11. 《人类简史：从动物到上帝》，尤瓦尔·赫拉利 12. 《文明》，尼尔·弗格森 13. 《当下的启蒙》，史蒂芬·平克 14. 《心智探奇：人类心智的起源与进化》，史蒂芬·平克 15. A history of knowledge, Charles Van Doren 16. 《神的历史》，凯伦·阿姆斯特朗 17. 《为什么佛学是真实的》，罗伯特·赖特 18. 《思考，快与慢》，丹尼尔·卡尼曼 19. Creating the Twentieth Century, Vaclav Smil 20. Transforming the Twentieth Century, Vaclav Smil 二. 中国文明、历史、文化 1. 《先秦诸子系年》，钱穆 2. 《中华文化十二讲》，钱穆 3. 《史记（白话本）》，司马迁 4. 《白话二十五史精选》，李解民等 5. 《四书章句集注》，朱熹 6. Waiting for the Dawn, William Theodore de Bary 7. 《中国的自由传统》，狄百瑞 8. 《万古江河——中国历史文化的转折和开展》，许倬云 9. 《黄宗羲全集》 10. 《余英时文集》 11. 《思想和人物》，林毓生 12. 《曾国藩全集》 13. 《万历十五年》，黄仁宇 14. 《天安门：知识分子与中国革命》，史景迁 15. The Search for Modern China, 史景迁 16. 《中国官僚政治研究》，王亚南 17. 《中...

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Bilibili Q2 2023 Earnings Call Transcript

Moving on to our community growth. Our DAUs increased by 15% year-over-year to 96.5 million in the second quarter, driving our DAU to MAU ratio up to 29.8%. In the second half of this year, we plan to shift our video watching metric from video views to video time spent, which will help our users discover more high-quality content on Bilibili. In addition, we are exploring new live broadcasting products to create more paying channels for our users, including live celebration events. We expect our ongoing integration activities to support our revenue growth in the second half of 2023. Our top five advertising verticals in the second quarter were games, e-commerce, digital products and home appliances, skincare and cosmetics, and food and beverage. 五大Top广告垂类 In the meantime, we have seven new titles that we plan to release in domestic and overseas markets in the second half of the year, including the highly anticipated game Pretty Derby 期待7款游戏能红火一波 We cut sales and marketing expenses by 2...

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《Becoming Steve Jobs》Chapter 15 The Whole Widget

What the world did see was an effective and visionary leader at the height of his powers. These were complicated years for Apple, but Steve handled almost every challenge in exactly the manner he wanted. He had fallen into leadership at such a young age, but he was comfortable in that role now, and justifiably sure of his capacity to guide Apple’s tens of thousands of employees to the goals he set for them. During these years, he would ensure the company’s continued success in personal computers by engineering a deft switch to a new kind of microprocessor; ruthlessly and successfully managing some major transitions in his executive team; and optimizing and building upon the efficiency and ambition of the company’s product development “treadmill,” as Tim Cook describes it. This is also when he delivered what is likely to be remembered as the most notable product of his life, the iPhone, and then improved even that by pivoting once again into a strategy he personally had not wanted to pu...

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产品随想 | 周刊第117期：He saw the intersection of art and science and business and built an organization to reflect that.

He disliked biography attempts. “I regard my scientific papers as my essential biography,’’ Land said. “I pour my whole life into the scientific project I’m investigating. I leave behind the things I’ve done in the past to do the work in the present.’’ “The purpose of inventing instant photography was essentially aesthetic,’’ Land said in 1947, announcing the process’s invention. “We live in a world changing so rapidly that what we mean frequently by common sense is doing the thing that would have been right last year.” — Edwin Land, Statement to Polaroid Corporation employees (25 June 1958) The worldview he was describing perfectly echoed Land’s: “Market research is what you do when your product isn’t any good.” And his sense of innovation: “Every significant invention,” Land once said, “must be startling, unexpected, and must come into a world that is not prepared for it. If the world were prepared for it, it would not be much of an invention.” Thirty years later, when a reporter ask...

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《深度学习推荐系统》By 王喆

推荐序言深度学习/机器学习，爆发于2015年算法能力+工程能力 1992年，施乐创建了应用协同过滤算法的推荐系统本书for：推荐、广告、搜索领域的从业者/爱好者第1章互联网的增长引擎──推荐系统不同业务模式的公司定义的具体推荐系统优化目标不同，例如，视频类公司更注重用户观看时长，电商类公司更注重用户的购买转化率(Conversion Rate，CVR ) YouTube推荐系统的主要优化目标就是观看时长，而不是CTR 工程论文：Deep Neural Networks for YouTube Recommenders 大致流程：构建深度学习模型，预测用户观看某候选视频的时长，按照预测时长进行候选视频的排序，形成最终的推荐列表淘宝首页：千人千面（即使是1%的CTR提高，也会到来数十亿元收入增加）推荐系统逻辑框架：f(U,I,C), User, Item, Context 推荐系统数据部分：实时数据、准实时数据、离线数据推荐系统模型部分：召回层、排序层、补充策略与算法层（排序层是工业界与学术界研究的核心）第2章前深度学习时代──推荐系统的进化之路 UserCF: 基于用户相似度进行推荐的协同过滤算法互联网用户数的增长会导致矩阵维护复杂度急剧上升用户的历史数据可能稀疏（导致UserCF不适用于酒店预订、大件商品购买等低频应用）适用于发现热点、以及跟踪热点的趋势 ItemCF：基于物品相似度进行推荐的协同过滤算法更适用于兴趣变化较为稳定的应用协同过滤的天然缺陷：推荐结果的头部效应较明显其它模型：矩阵分解、逻辑回归、FM、FFM、GBDT+LR、LS-PLM (细节已经要看不懂了) 第3章浪潮之巅──深度学习在推荐系统中的应用 Google Play的推荐团队，基于对业务场景的深刻理解，提出了Wide&Deep模型这张属于看不懂那种类型第4章 Embedding技术在推荐系统中的应用 Not Interested 第5章多角度审视推荐系统从7个不同的角度切入推荐系统推荐系统如何选取和处理特征召回层的主要策略有哪些？实时性的重要性体现在哪里？有哪些提高实时性的方法？如何根据具体场景构建推荐模型的优化目标如何基于用户动机改进模型结构冷启动问题的解决方法有哪些什么是探索与利用问题？有哪些主流的解决方法第...

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