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Изворен канал @pythonotes · Post #411 · 9 фев.

reload_flag="" if [[ -n "${DEBUG}" ]]; then reload_flag="--reload" fi if [[ -n "${WORKER_COUNT}" ]]; then workers=${WORKER_COUNT} else workers=2 fi gunicorn --workers ${workers} \ --bind 0.0.0.0:8000 \ ${reload_flag} main.wsgi Писали такие конструкции чтобы проверить наличие флага и сформировать команду правильно? На самом деле можно сделать тоже самое проще. Для этого используются операторы условной подстановки, доступные в оболочках семейства POSIX. :- для установки значений по умолчанию ${WORKER_COUNT:-2} Если переменная не объявлена, то будет дефолтное значение 2. :+ подставляет указанный текст, если переменная не пуста ${DEBUG:+--reload} Если что-то есть в переменной то распечатается текст после символа +, в противном случае - ничего. Удобно для опциональных флагов, как в нашем примере. Итого наш скрипт может выглядеть так: gunicorn --workers ${WORKER_COUNT:-2} \ --bind 0.0.0.0:8000 \ ${DEBUG:+--reload} main.wsgi Есть еще два оператора. := не только подставить дефолтное значение, но и присвоить его переменной, если она пуста # никаких переменных еще нет VAL1=${VAL2:=hello} # теперь доступны обе echo $VAL1 $VAL2 # hello hello :? остановить выполнение с ошибкой, если переменной нет. echo ${MISS:?is required} bash: MISS: is required Код выхода будет 1. #tricks#linux

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Venture Village Wall 🦄

@venturevillagewall · Post #3856 · 12.01.2025 г., 13:00

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Venture Capitalists Seek Unique Startups Harry Stebbings highlights the challenges in securing early investments for billion-dollar startups. He notes that successful startups often face skepticism, as venture funds must invest in uniquely promising ideas that others doubt. This trend raises the question: should you seek agreement or disagreement on your idea? In related news, the music generator JEN-1.5 is now publicly available, focused on licensed content under Warner. However, it lacks quality, providing only basic melodies and no vocal options. While it includes a subscription model for limited generations, it aims to appeal to musicians with its StyleFilter tool, which promises some innovative potential. You can explore JEN-1.5 here. #Startups#Investing#VentureCapital#MusicTech#AI#Innovation#Funding#Entrepreneurship#Disruption#Technology#TechNews

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Venture Village Wall 🦄

@venturevillagewall · Post #4029 · 30.01.2025 г., 13:00

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From Pet Project to Europe's Top Startup Klarna, founded by three Swedish students in 2005, progressed from an idea into Europe's most valuable startup worth $45.6 billion. Initially losing a school competition, they launched a unique payment service. By offering a secure, easy checkout and features like BNPL, Klarna solved key challenges for sellers and buyers. Despite major fluctuations in valuation, they are now preparing for their IPO. This journey emphasizes resilience in entrepreneurship and the complexities of attracting investments. Read more here. #Klarna#Startup#Europe#FinTech#Payments#BNPL#IPO#Entrepreneurship#Investment#TechInnovation#BusinessGrowth#E-commerce #Sweden#Funding#BusinessModel#TechStartups#FinancialServices#OnlinePayments#Disruption#VentureCapital#AI#Crypto

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@venturevillagewall · Post #3608 · 21.12.2024 г., 07:13

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Disrupting Subscription Models A potential billion-dollar startup aims to revolutionize content sales by eliminating subscription models that frustrate users wanting single purchases. Currently, 70% of subscribers cancel within 3-6 months, while content sellers hesitate to switch to one-time payments due to lower profitability. Innovations in this direction could lead to significant market changes. More details here: Fast Founder #Startup#ContentSales#SubscriptionModel#UserExperience#BusinessStrategy#MarketInnovation#OneTimePayment#Profitability#UserRetention#Ecommerce#RevenueModel#Disruption#TechStartup#Media#DigitalContent#OnlineSales#Fintech#Investments#Entrepreneurship#InnovativeIdeas